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Here you will find
the most commonly asked questions concerning problems with your
connection, problems with email and problems in general. You will
find that we have answered them with the best and most common
solutions to them. If you don't see the answer here to your problem,
please email your question to us and we will answer it at our
earliest opportunity.
Q. What icon do I click to get online?
A. This is an issue that continues to come
up, day after day. The proper way to get connected is to start
with your Dial-up Networking Icon, usually found on your desktop
and titled "Dial Billie's Gloucester County Account"
or what ever your username and county are. If your user name
is Sam, then it will say "Sam's Account" Once you
have that icon open, you should make sure your username and
password are correctly entered all in lower case letters. Then
click "Connect". Let the system negotiate
your connection and give you the message that you are connected
at what ever baud rate you connect at. Once you have established
this connection, then you can double click your Netscape icon,
your MSIE Icon, your Internet icon or your mail software icon.
You should never start out your session by
double clicking Netscape, MSIE, the Internet or your email software
icon. While this may work for you for a while, it WILL fail
you at some point.
Q. What is my email address and what are
the other settings I need to setup my software?
A. The following are the settings you will
need for your software setups.
- Email address - your username@crosslink.net
- SMTP (Outgoing mail server)
- smtp.crosslink.net
- POP 3 Server (Incoming mail
server) - one of the following will apply to your case:
- Microsoft mail applications:
your username.pop.crosslink.net
- Netscape mail applications:
your username.pop.crosslink.net
- Eudora Lite and Pro - username@username.pop.crosslink.net
- Usenet or News Groups - news.crosslink.net
- DNS Server addresses: Primary
DNS - 206.246.64.1 Secondary DNS: 207.199.128.1
- Local Dial-up number: Please
click here for a complete list of our POP
sites.
Q. What other things do I need to know to
make sure my computer is setup correctly to get online?
A. Some of the most crucial steps to follow
are listed in the paragraphs below.
- IMPORTANT Before getting on line, you should check
some things. Double click "My Computer",
then double click "Dial Up Networking".
Inside the dial-up networking window you will see your new
icon. Click your new icon with your right
mouse button and then go to the word "Properties"
when the box drops down. Click "Properties".
A new widow will now appear. Make sure that there is
not a black check to the left of "Use
Country Code and Area Code". If there is, click
it so that it goes away. Then click the "Server
Type" button or tab. In that window make sure
that only "Enable Software Compression"
and "TCP/IP" have black checks next to them. If
they don't click them so that they do. If anything else has
a black check or black dot next to it, click it so that the
mark goes away. Close all the "Dial-up Networking"
and "My Computer" windows.
- IMPORTANT One last thing to check will be to make sure
your computer is setup to get online through Control Panel.
Open Control Panel. Inside Control Panel
open the Network Icon. Then scroll down until
you find TCP/IP or TCP/IP - Dialup
Adapter. Select it by clicking it one time. Then
go to the right side and click Properties. Inside
Properties, select the DNS Configuration
Tab. There you will need to make sure that ENABLE
DNS is selected. In the blank to the right of HOST
enter your login name only, all lower case
letters (NOT YOUR EMAIL ADDRESS). Then inside the box to the
right of DOMAIN enter crosslink.net
(exactly as you see it to the left here, no CAPS, nothing
other than what you see to the left). Then go into the DNS
server Search Order box (the one with the dots in it and enter
the following numbers 206 246 64 1 so that it reads exactly
as follows: 206.246.64.1 Then Click ADD.
Again, in the same box that you just got done entering into,
enter the following numbers 207 199 128 1 and click ADD.
You should now have two lines of numbers below and they should
read as follows: 206.246.64.1 and 207.199.128.1 EXACTLY. Then
select the IP Address Tab, and make sure that Obtain
an IP Address Automatically is selected. Then click
the Bindings Tab. If you have Client
for Microsoft Networks in this box, make sure you
have a black check to the left of it. Once complete, click
OK and OK until you don't have any more OK's to click. Then
close all windows and restart Windows.
Q. I keep getting cut off in the middle of
my online session. What is the cause and what can I do to prevent
this from happening?
A. First, keep in mind that we have a 15
minute "time out" feature in the system. This is to
prevent people from leaving their machines logged in and forgetting
they are online, which ties up a line and may cause busy signals,
one thing we don't tolerate here at Eagles Nest. In order to
ensure you have the best possible service with NO BUSY SIGNALS,
we have the time out feature. This basically means that if you
are not staying busy while online, which means transmitting
data to and from your computer, not just scrolling on pages,
you will be logged off as the system will think that you are
not on line. The best way to prevent this is to stay busy at
all times. If you have large, long email messages that need
to be written, the best way to handle that is to compose them
off line. Then login to the system and cut and paste them into
an email message. Then send the message. If you find an article
or document that is too long to read in the 15 minute period,
the best thing to do is print it and set it aside for later
reading.
Q. System won't accept my password or login
name. The system comes back with the message "Dial up Networking
can not negotiate a compatible set of protocols . . . "
What is the problem?
A. There are a number of different reasons
for this that could be the case.
The first one is that you should
make sure you are using the correct login name and password.
Make sure they are entered in as all lower case letters, NO
CAPS. Our system will not accept any UPPER CASE letters.
One more reason is that you have
incorrect settings in your DUN (Dial up Networking). To check
your settings, please follow the instructions that are locate
by clicking here.
If neither one of the above solves
your problem, try restarting your computer. Often times you
computer will store certain bits of information in some of the
shared files, and after multiple sessions on line it will fail
to make a connection. Basically the computer is confused and
just need s fresh start.
If these don't work, email us and we will try to solve it for you.
Please make sure you give us very specific information about
what the problem is so that we have enough data to work with
and solve you problem. Make sure you send us the EXACT message
that you received from your computer, word for word.
Q. I can't receive my email, it locks up or
stops at a certain message. What do I do?
A. Nine time out of 10 this problem is caused
by someone from the outside sending you a file via the email
system that is too large for your email software to handle.
Netscape and MSIE can't handle messages larger than 70k in size.
You should inform the sender of this and have them reduce the
size of the file. Or, you should download a copy of Eudora Lite and use it for your email. Eudora is a
true email client, and will handle larger files much more efficiently.
If your mail is locked up and you can't get past a certain message,
you will need to go clear your mail box. You should go here and enter your login name and password,
then click the button for "Delete Largest Message".
Then go try your mail again. If it still locks up, try the same
process over again, and keep trying it until you have deleted
all the messages that are too large for your system to handle.
Remember, Netscape and MSIE will not handle anything larger
than 70k files. Eudora will handle up to 2 megs, which is the
largest our system will allow to be transferred via the email
system. Files larger than that should be handled via FTP.
Q. I can't send or receive email messages.
What do I do?
A. Most of the time the reason for this is
because you have not got your mail software setup correctly.
Please find detailed instructions for this by clicking here.
Q. My computer gives me the message that there
is "No response from the modem". What do I do?
A. This is most commonly caused by either
your modem being incorrectly configured, or due to the fact
that your modem is on the blink. To determine if your modem
is in good operating condition, please run a diagnostic check
on it. To do that, simply open Control Panel,
then open Modems. Then select the Diagnostics
tab at the top. Select your modem and com port by clicking it
one time, then click MORE INFO. It will then
begin a diagnostic check of your modem. Once complete, look
carefully in the box that comes up and see if you see the word
"Error" anywhere in the text. If you do, chances are
your modem has been damaged somehow and you will need to put
a new modem in your machine.
Q. I have a 33.6 BPS or 56 k modem but I can't
connect any faster than 28.8 BPS. What is the problem?
A. Modem connection speeds are determined
by a number of things. Line quality to your home or business,
length of cable between your home/business and the Telco CO,
and/or how your modem is connected to the phone lines. We have
installed all the latest in technology in server equipment in
all our POP sites. They all run the latest in OS software on
them. So unless there is a problem with the data circuit feeding
the POP site, the problem most probably lies somewhere between
your modem and our POP site. We have spent a lot of time working
with GTE to determine what the causes are and what can be done
to correct them. Here are some guidelines to follow to ensure
you have the best possible connection.
1. DO NOT have anything, not one
single thing between your modem and the wall jack. This means
NO SPLITTERS, NO PHONES, NO FAX MACHINES, NO COUPLERS, NOTHING.
High speed ;modems don't deal well with any extraneous equipment
between them and your phone jack. Anything that is in the line
between your modem and the wall jack can cause line noise or
distortion, which will cause either slow connection rates or
no connection at all.
2. Try to determine the distance
between your home/business and the closet Telco CO. If it is
over 14,600 feet (roughly 2.8 miles) you should not expect the
faster connection rates. The longer the distance, the more interference
and noise your line will have on it, the less your connection
rate will be.
3. Make sure you have a good quality,
high speed modem with at least V.32/34 and 2 to 4 error correction.
This will help filter out the majority of the line noise found
down here. Suggested modems are as follows:
28.8 and 33.6 - US Robotics Sportster
(internal or external) Do not use a Win Modem by US
Robotics!
56k - Modem Blaster 56 KFlex
by Creative Labs
Q. Why don't I get 28800 BPS (or more) on my
connections?
A. (If you see a connection speed of 38400,
57600, or 115200, don't be fooled -- that is the serial port
speed between your computer and your modem, not the
speed between your modem and the remote modem. To report
the modem-to-modem speed, your modem probably needs a different
initialization string. Consult your documentation.)
Note: Reported initial connect
speeds won't necessarily be dependable or even comparable
from modem to modem or location to location. The reason is that
V.34 modems can (and often do) speed shift up and down after
the initial connection, and do so in a manner that is dependent
on the particular connection as well as the particular equipment
(including firmware versions) at each end.
FALL-BACK/FORWARD Fall-back/forward
is simple speed shifting that is relatively quick, so we would
like the modems to fall back when needed to keep the error rate
low, and fall forward when possible to improve throughput. With
the modem speaker on you will hear only a small beep or blip
in the carrier hiss. If a noise burst causes a fall-back, we
want the modems to fall-forward as soon as the burst is gone.
What we don't want is for the modems to ping-pong back and forth
between two speeds, because that would result in lower throughput
than simply remaining at the lower speed. Again, fall-back/forward
can be requested by either modem, but will only occur if the
other modem permits it. Some modems connect at a more conservative
speed and then quickly upshift as conditions allow; other modems
connect at a more aggressive speed only to quickly downshift
(or worse, lose performance due to excessive errors). Another
problem is that software may report the receive speed for certain
modems and the transmit speed for other modems, which can be
substantially different. What are split/asymmetric speeds? In
the past, most standard modems were only capable of transmitting
and receiving at the same speed. (The exceptions were proprietary
modems such as the USR HST that used greatly different transmit
and receive speeds.) Since most connections were made at the
maximum speed, there was little reason to support different
transmit and receive speeds.
With the advent of speeds up to
28800 BPS that is no longer true. It's now quite common to have
a connection where at least one (and often both) speeds must
be limited to less than 28800 BPS, and it's not uncommon to
find that a connection will support faster speed in one direction
than the other. (One reason is that send and receive channels
are separated for transmission between telephone switching offices.)
Having been designed to optimize performance over a wide variety
of conditions, V.34 includes an optional specification for asymmetric
(differing or split) transmit and receive speeds. For example,
a connection might support a transmit speed of 28800 BPS but
a receive speed of only 26400 BPS; without split speed, the
speed in both directions would have to be limited to 26400 BPS.
For this reason split speed capability is a worthwhile and desirable
feature.
Not all V.34-compliant modems support
split speeds. For example, at the time of this writing most
"glue 'n go" Rockwell V.34 clones, do not support
split speeds.On the other hand, others, including all USR V.34
modems (Sportster 28800/33600 as well as the Courier V.34),
Diamond/Supra, and Motorola, do support split speeds.Unfortunately,
it is not possible to monitor the actual modem speed during
the connection for most modems. Regardless, the only thing
that really counts is net throughput, which can be measured
by many communications applications.
If you consistently connect at
26400 or above, there may not be much that you can do to go
faster -- it's simply not possible to achieve the highest V.34
speeds on many phone circuits. (This is not false modem advertising
-- 28800 modems are designed to wring as much speed out of the
actual real-world connection as possible, and 28800 or higher
speed is only possible on a near-perfect connection.)
If you consistently connect at
lower speeds (e.g., 24000 or even 21600), there may still
not be much that you can do, but you can at least try the following:
- Make sure that your serial port
is locked at 38400 or higher (57600 recommended). This is
usually set within your comm application, not
the Windows Control Panel
- How do I set a speed greater
than 19200 BPS in Windows 3.x? You can set a speed faster
than 19200 in the Windows Control Panel by simply typing it
in. However, there is almost never a need to do so -- almost
all Windows comm applications set their own serial port speed.
The settings in the Control Panel are primarily for devices
attached to the serial port; e.g., printers. (See "Control Panel Serial Port Settings
Are for Printing Only")
- Watch out for heat. Some modems
work better cold than hot, and vice versa. Generally speaking
it is a good idea to make sure that the modem does not get
too hot.
- With a PC Card (PCMCIA) modem
in a laptop computer, try disconnecting the computer from
AC power and running on battery alone.
- Try connecting to known good
28800 numbers (e.g., Hayes at 800-"US-HAYES; Multi-Tech
at 800/392-2432; USR at 847/982-5092). This will at least
tell you whether the problem is at your end or the other end
of the connection. (The USR number is particularly useful,
because you can get an on-line reading of connection quality
from a USR BBS command.)
- Watch out for dial-in
numbers that are being forwarded to a distant location.
It's a "dirty little secret" that many BBS (bulletin
board systems) and ISP (Internet service providers) use Call
Forwarding to extend their local calling areas. (Where location
A to location C is a toll call, and an intermediate location
B is local to both A and C, Call Forwarding from B to C effectively
makes A to C a local call.) Although this can work fairly
well at lower speeds (e.g., 14400), the extra connection
hop(s) can degrade the signal enough to limit higher speeds
(even as compared to a direct long distance call). A local
number does not necessarily mean a local call. While there
are some local providers (Sylvan comes to mind) here in the
area that are playing this "TRICK" on their subscribers,
we DON'T. All of our local POP sites are independent POP sites,
with their own routers, phone lines and data circuits.
- If you have your modem connected
to the phone line through a surge suppresser, REMOVE
the surge suppresser. Many surge suppressers can interfere
with modem communications. (In general, we do not
think that phone line surge suppressers are a good idea. We
have found that in almost all cases they will either cause
a very slow connection rate or in a lot of cases, no connection
at all. The best protection against lightening strikes is
to completely isolate your computer form the outside world
when you know there is a storm coming. And don't forget, UNPLUG
YOUR PHONE LINE as well as all power lines!)
- If possible, test for premises
problems by disconnecting all your premises
wiring (and equipment) from the incoming Telco terminating
block, and hooking your modem directly to it. If your connections
are better, you have a premises problem that you may be able
to isolate and fix. Premises problems (faulty wiring and/or
equipment like cheap phones and fax machines, and even other
modems) are a frequent cause of connection problems. If
you need to fix your premises wiring, you may be able to get
help at the "Phone-Man's Home Page". Note: We cannot vouch for the
accuracy of that information.
- If that doesn't help, listen
carefully to the quality of your voice connections. Note that
you must dial a known quiet number, since many otherwise good
phone lines exhibit excessive noise until you actually connect.
(Dialing a single digit is not enough.) After
you connect, if you hear more than very faint hiss and/or
hum, then you probably have a line problem. Contact GTE or
your local Telco and have them BALANCE your
line. The operative, key word here is BALANCE.
A good self test for line noise and improper balancing is
to pick up a regular phone set (not a portable phone), dial
the first three numbers of your phone number and just listen.
If you hear any noise or hum, chances are you have a battery
load on your line and you need to have it balanced. Again,
the key word is BALANCE.
- While a quiet line is important,
there are other line problems that can reduce your speed:
bandwidth (frequency response), distortion, etc. It
is difficult to test for these problems without proper test
equipment, but it's still a good idea to listen carefully
for audible problems, particularly if you can find a number
that will send you test tones.
- You may be able to get your
phone company to improve the quality of your line. Since phone
companies are often reluctant or even unwilling to work on
data problems, it may help to report that you are also having
fax problems. Or you can try asking for a data or fax "specialist."
Ideally you want the service technician to bring the right
kind of test equipment, a sophisticated line or transmission
test set, not just the normal basic tester. It may also help
to ask for a BERT (bit error rate tester) or "data test
set."
- Sometimes switching to a different
cable pair from the CO (central office) will help. In extreme
cases the author has resorted to ordering a new line, making
sure that it is good when installed, and then canceling the
old line.
- You may be told that you need
a special "data" line, more properly called a "conditioned"
circuit, which is considerably more expensive than a standard
"voice-grade" circuit. Don't waste your money.
All you need is a good quality "voice-grade" circuit.
Those with a technical bent may
be interested in the telecom troubleshooting information posted
in the Technical Bulletins by Mike Sandman, who sells a variety of
hard-to-find telecom tools, parts, and test equipment.
A final note: Common add-on noise
filters will not help -- they are the modem equivalent
of snake oil. Your 28800 modem already has all the filtering
it can use. A common add-on filter will do nothing at best,
and it may well make things worse.
Q. I seem to be logging in OK, but once logged
in, I can't get any home pages or email from the system. What
do I do?
A. The biggest cause of this is not logging
in correctly. You should NEVER use the single Icon connection
method. Even though you are able to log in sometimes by using
either the Netscape or MSIE icon, then dialing in from there,
there will, most certainly be a time when you will encounter
this problem. The only way to make sure you don't have this
problem is to log in correctly. This is accomplished by dialing
in using your Dial up Networking Icon, named either "CrossLink",
"Eagles Nest", or "Dial
______'s Account" if you are using our latest
software issue, Netscape Communicator 4.04. The single icon
method will, at some point in time, cause confusion between
several of the shared files in Windows that are used by all
the Internet software applications. This will cause the TCP/IP
protocol to not function properly, and it will, for lack of
a better explanation, vapor lock, and not let you gain a good
connection with the proper protocol. Hence, you will not be
able to get anywhere even though you are apparently logged in.
Use your dialup networking icon, then start your browser or
email software. It will get rid of a lot of errors in connecting
and do away with a lot of frustration on your part.
Q. Why is my modem getting NO DIAL TONE?
A. Here are some answers.
- The most obvious cause is that
you've neglected to plug your telephone line into your modem.
Double check to make sure. Or the telephone cable may be bad
-- test it on a regular telephone.
- A common problem is plugging
your telephone line into the wrong jack on your modem.
Many modems have two jacks, one for the telephone line and
one for a telephone handset. On some of these modems (e.g.,
US Robotics), you won't be able to get a dial tone or otherwise
use the modem if you plug the telephone line into the telephone
handset jack. Double check to make sure.
- Another common problem is that
some other device on the same telephone line (e.g.,
a telephone answering machine) is off-hook. Double check to
make sure that all other devices are on-hook.
- There may be a problem on your
telephone line. Make sure that you can get a dial tone on
a telephone handset connected to and through your modem when
the modem (or computer in the case of an internal modem) is
turned off.
- Many voicemail systems use a
"stutter" dial tone or beeping when you pick up
the phone to indicate that you have voicemail waiting. These
unexpected sounds can make the modem think there is no dial
tone. If you must use the modem on a line with these voicemail
or similar sounds, you can try the following workarounds:
-
- Increase the amount of time
that the modem waits for dial tone by setting the number
of seconds to wait in register S6 (e.g.,
S6=5).
- Lower the Xn setting
to an odd number value to make the modem ignore dial tone
and dial blindly (e.g., X3 instead of
X4, or even X1).
- Your modem may not be designed
for the phone system in the country in which you are trying
to use it. As a workaround, try lowering the Xn setting
as described above.
Q. Why do I sometimes get abruptly disconnected?
A. There are several answers below.
- If you have Call Waiting, the
incoming call "beep" may sometimes (but not always)
disconnect you. To avoid this problem, you may be able to
temporarily disable Call Waiting when you make a data or fax
call. (See below for instructions on how to disable call waiting)
- If your modem fails to negotiate
error correction (V.42/LAPM or MNP4), the uncorrected transmission
errors may make the remote site hang up on you. To avoid this
possibility it's a good idea to force error-correcting connections;
that way if the negotiation of error correction fails, the
modem will fail to connect, and you may be able to configure
your software to retry the connection automatically. In Windows
95 you can go to Properties | Connection | Advanced and check
the Required to Connect option; otherwise, check your modem
documentation for the correct option to set in your modem
initialization string.
- Disconnections may be caused
by momentary drops of DTR by certain comm applications. (By
default most modems respond to a drop of DTR by hanging up.)
- With most modems you can
work around this problem by disabling DTR (i.e.,
&D0). Note that when DTR is disabled you
have to escape the modem to command mode and use the "ATH"
command to hang up.
- With USR modems you can
also use register S25 to work around the problem
(e.g., S25=10 will ignore a DTR drop of
less than 10/100 or 1/10 second, which is twice the default
of 5/100 second).
- For those experiencing disconnects
(and/or erratic connection speeds) when calling Rockwell-based
V.FC modems from a USR 28800 (V.FC or V.34) modem, a firmware
fix is now available for the Sportster (dated 4/18/95 or later
for USA modems) by calling USR (847/982-5151); for the Courier,
the fix (dated 7/5/95 or later for USA modems) is available
by FTP. In the meantime, the author's
workarounds (which may help in some cases even if you have
the updated firmware) are:
- Disable V.42 Detect Phase (i.e.,
S27=48).
- Disable V.42 completely (i.e.,
S27=32). If you then sometimes get non-error-correcting
connections, force error-correction mode (i.e., &M5).
You may find that you have to redial several times to get
connected; if so, try the following. -- and/or ---
- Disable the highest symbol rates
(e.g., S54.5=1S54.4=1S54.3=1). This will limit
your top speed (to 24000 in this example), depending on how
many symbol rates you disable (3429, 3200, and 3000 in this
example).
- With V.FC-only firmware (as
opposed to the newer V.34 firmware) it may help to also disable
the 32S-2D map (i.e., S55.2=1).
- It may also help to set S10=255.
With a USR 28800 modem, you can
determine the technical reason for a disconnect by issuing the
ATI6 command immediately after the disconnection. Disconnect
reasons are explained in the Courier manual.
If possible, set these options
on a phone number-specific basis. With comm apps which lack
that capability, you may be able to embed them in the phone
number; e.g., "^H^HS27=48DT555-1212".
(The two "^H" backspace characters erase
the "DT" in an "ATDT"
dial command so that the "S27=48" will be
accepted, and then the following "DT" replaces
the "DT" that was erased; i.e., "ATDT"
+ "^H^HS27=48DT555-1212" = "ATS27=48DT555-1212".)
Q. Why do connections sometimes seem to run
slower and slower?
A. The following is a discussion of the so-called
"spiraling death" problem that has been observed on
the Sportster 28800 (and sometimes even the Courier V.34), where
the modem will fall back over time on certain connections to
ever lower speeds.
What we are really concerned with
here is fall-forward, not retraining. Retraining is normally
a rare event. So the problem is really that the Sportster 28800
sometimes does not fall-forward when it is able to do so.
The symptom is that the Sportster 28800 is sometimes observed
to fall back to progressively lower speeds without ever being
observed to fall forward back to higher speeds. The implication
is that line conditions would have permitted a higher speed,
which may or may not have been true. (It's impossible to say
for sure without elaborate test equipment.)
THE ATO1 CONNECT RESPONSE CONFUSION
Some of the evidence used to support
the claim that the Sportster 28800 doesn't fall forward has
been that ATO1 (forced retraining) returned the modem
to a higher speed. The problem with at least some of these reports
is that people have assumed that the CONNECT response to ATO1
reports the new speed after retraining. It doesn't, as should
be obvious if you notice that the response appears before
the retraining sound (heard with M2) is completed. The response
sometimes shows the previous connection speed, and sometimes
shows the original connection speed, but never the new speed.
The only way to correctly determine the connect speed
after retraining is to escape to command mode and use the ATI6
command!
Suppose that a phone connection
is such that the Sportster 28800 CONNECTs at a high speed (e.g.,
28800), but then falls back to a lower speed (e.g., 24000)
due to line conditions. Escape to command-mode followed by ATO1
might well make you think that retraining has returned the modem
to the original high speed (due to a CONNECT 28800 response)
when it may well not have. Disconnecting and reconnecting
could produce the same misleading indications. In other words,
these may just be plain old poor connections. The moral here
is that you must use ATI6, and only ATI6,
to check the current connection speed.
Another problem is that ATO1
may not change the current speed, or may even reduce it, depending
on changing line conditions. And it's hard to keep ongoing auto
fall-back/forward from confusing the issue (unless you use M2
and listen carefully for the sound of the speed shifts, a small
beep or blip in the ongoing carrier hiss). The only way
to know for sure whether or not the speed changed is to use
ATI6 immediately before and after ATO1.
SPORTSTER PROBLEMS
Does the Sportster 28800 fall-forward
automatically or not? From extensive testing (literally hundreds
of hours to both USR and non-USR modems) the author concludes
that the answer is: often yes, but sometimes no. The author
has run many tests where the Sportster 28800 was forced back
to (say) 16800, and then it rapidly fall forward to a much higher
speed. But the author has also run some tests where it stayed
at 16800. This seems to be a function of both line conditions
and the modem at the other end of the connection.
Note that this problem is not absolute
-- while some users do encounter it on some connections, many
users never encounter it.
Another possibly related problem
that some have reported with the external Sportster 28800 (not
the internal Sportster, and not either type of the Courier)
is that adjusting the speaker volume control while on-line causes
the modem to fall back. Anecdotal reports suggest that higher
connection speeds may be possible if the volume control is turned
all the way down before the initial negotiation (and left there).
Turning off the speaker with M0 is apparently not effective.
WHAT TO DO
USR now has a fix for this problem
in the form of updated modem firmware. See "Sportster Supervisory Update Information". (Note: the dates in the firmware table
are not necessarily the dates of the latest versions.)
While waiting for the fix, here
are some workarounds to try:
- If possible try a different
modem to see if the problems persist or not.
- Try to improve your connection
-- the Sportster 28800 may be falling back in response to
noise bursts on the line.
- If you have the external Sportster
28800, try turning the volume control all the way down before
the initial negotiation.
- You can disable fallback on
the transmit side (the receive side is not affected) by setting
the undocumented option of S15=2. The downside is
that you may get disconnected if line conditions deteriorate
enough to warrant a fall-back and/or you may experience more
retraining. (This option is documented for the Courier V.34.)
- If you have 11/30/94 or later
Sportster firmware (date for USA modems), you can lock the
transmit speed (but not the receive speed) in a range with
&Nn&Un (e.g., &N14&U12
locks the transmit speed between 28800 and 24000). With an
appropriate range, this may be more reliable than S15=2.
(However, it does not work on the Courier.)
Q. Why do my on-line connections "pause"?
A. You are on-line to a remote system, perhaps
a distant system over the Internet or a local bulletin board
system (BBS), transferring data or typing in commands, when
suddenly communications stops. Then after a few seconds, a few
minutes, or possibly even longer, things start flowing again.
The question is, what happened? The answer is, it depends. There
are a great many things that can cause this kind of pausing,
and determining the real cause can often be difficult, sometimes
very difficult. Worse, the cause may be out of your direct control.
Here is a list of possible causes, tips on how to identify them,
and suggestions for ways to deal with them:
Telephone connection problems
- Modem error recovery
- When a transmission error occurs,
error correcting modems will automatically retransmit the
affected data. Under normal conditions the retransmission
will be brief, but when connections are poor the retransmissions
can result in "pauses" that last for many seconds.
Certain modems will help you diagnose and/or detect this kind
of problem (e.g., with a "link diagnostics"
screen, or flashing ARQ or SQ lights). The only way to completely
solve this problem is to get better connections (see "Why
don't I get 28800 BPS (or more) on my connections?" on
this page), but it may help to reduce the connection speed
(so as to reduce the frequency of errors).
- Modem retraining
- While modems are retraining
due to a poor connection, no data can flow. Although a single
retrain lasts only a few seconds, multiple retrains (and other
related error recovery) can go on for much longer, up to 30
seconds or more in the author's experience.
Network (Internet) problems
- Lost TCP/IP packets
- When a TCP/IP network (e.g.,
the Internet) gets overloaded, the network routers deal with
the problem by dropping (discarding) data packets. It then
takes time for the sender to notice that the receiver hasn't
acknowledged packets that have been sent, and to resend those
packets (which may in turn get dropped). The result is a general
slowdown in data transmission speed, often with long gaps
or "pauses." In extreme cases packet loss can go
as high as 30% or more, bringing transmission down to a fitful
crawl with nothing flowing most of the time. This problem
can be diagnosed with "ping" and "traceroute"
tools (the use of which is beyond the scope of this document).
The only way to deal with this problem is by complaining to
the network administrator, but there may not be much that
can be done if the congestion problem is outside of the local
network (e.g., elsewhere on the Internet)
- Remote server overload
- Remote servers can only handle
so much load. When the load gets excessive, there is a general
slowdown to all those using the server, often with long pauses
when the server is busy serving other users. As the Internet
grows, this is becoming an ever-increasing problem, particularly
for popular sites. The only way to deal with this problem
is to access the server when the load is less (e.g.,
in the wee hours of the morning).
- Routing and other problems
- Certain networks are adopting
packet routing policies, particularly during periods of peak
load, that discriminate against certain users, particularly
smaller ISP's (Internet Service Providers). At best the network
may drop many packets or route them onto slower, more congested
links; at worst, the network may refuse to pass them altogether.
The only way to deal with this problem is to be sure that
your ISP has good connectivity (e.g., multiple "peering"
points, multiple "backbone" connections and/or alternate
transport providers). In the long run the smaller ISP's may
simply be squeezed out.
Computer problems
- Flaky serial port (UART)
- A flaky serial port (UART) can
cause all sorts of communications problems, including both
long and short ("pausing") lockups.
- Improper flow control
- If flow control is not configured
properly in both the comm software and the modem, the
result is overruns. These overruns result in lost data, which
can cause "pauses" as well as delays due to data
retransmission.
- Hardware conflict
- Hardware conflicts are a frequent
cause of both long and short ("pausing") lockups,
particularly when two COM ports are set to the same I/O address
or IRQ. For example, a mouse on COM1 and a modem on COM3 will
normally product such a conflict. (Sometimes moving the mouse
will cause modem data to flow, but in other cases the modem
may work fitfully or not at all.)
Software problems
- TCP/IP configuration
- Improper TCP/IP configuration
can lead to packet fragmentation and other problems that may
be manifested as "pausing."
- Software configuration and
interference
- Configuration problems in comm
software applications can also result in "pausing."
The only solution is to ensure that all comm applications
are configured properly. It is also possible for two software
applications and/or device drivers (particularly network drivers)
to interfere with each other enough to cause a "pausing"
problem; the only solution is to eliminate (one of) the offending
application(s).
- Operating system swapping
- Sometime the operating system
suddenly needs a lot more memory for a given application,
and has to swap megabytes of data between memory and a disk
drive. On less sophisticated operating systems (e.g.,
Windows), this can result in a "pause" in communications
during the swapping. The symptom of this problem is a large
burst of disk activity.
Modem firmware problems
- USRobotics Sportster
- Certain USRobotics Sportster
modems with firmware dated in February and March of 1996 have
a firmware timing problem that can cause the modem to "pause"
when the modem is being used in an interactive mode on a normal
dialup connection, typically when typing commands while connected
to a Bulletin Board System (BBS) or asynchronous dialup UNIX
shell. The "pause" will clear itself if you wait
long enough (up to about a minute). To troubleshoot and correct
this problem, see "Sportster Supervisory Update Information". (Note: the dates
in the USR firmware table are not necessarily the dates of
the latest versions.) For more SRO information see "USRobotics on the Internet".
Note: USRobotics recommends initializing the modem
with S12=0 (which disables the modem escape code) as a work-around
for this problem. We recommend S12=0S2=255, which is more
robust.
-
- Modem interoperability
- Incompatibilities between certain
modems can result in a variety of problems, including "pausing."
If disabling V.42 (and falling back to MNP) causes the problem(s)
to go away, then you probably have an interoperability problem.
A firmware upgrade that corrects the problem may be available
for your modem.
The simplest and most effective way to deal with a modem
problem is to return the modem to the dealer from whom you
bought it for refund, credit, or exchange. (Even when
you are outside of the normal return period, many dealers
will still take back the modem for credit or exchange, particularly
if you are persistent.)
Q. Why does my Windows 95 Internet run at
half-speed?
A. Two fixes come to mind here.
The MaxMTU Fix
Have you found that your Internet
file transfers (e.g., downloads) are very slow, in the
range of 1,000-1,600 characters per second, even on a 28800
modem connection? It may just be Internet overload; on the other
hand it may be a symptom of a Windows 95 MTU (Maximum Transmission
Unit) problem. To find out which it is, compare the display
of "Bytes received/sec." in System Monitor to the characters per second reported
by your downloading application (e.g., FTP client or
Web browser). These two values should be within about 10%;
e.g., if your "Bytes received/sec." is 3,300
(typical of compressed data on a good 28800 connection), your
characters per second should be about 3,000. If instead the
characters per second is 1,000-1,600, you are getting a lot
of wasted retransmissions that are probably due to the Windows
95 MTU problem. Microsoft's Dial-Up Networking 1.3 Upgrade
does not fix this problem (as previously hoped).
The only reliable work-around that we have found for
this problem is to add the "MaxMTU" parameter to your
Registry and set it to a value of 576. (MaxMTU and other networking
parameters are documented in the free Windows 95 Resource Kit Help File.)
The Default Receive Window
Fix and Hack
"Occasionally one sees slow
downloads over dial-up PPP connections. I have never seen a
plausible explanation for this in the comp.os.ms-windows.* newsgroups, but did find an explanation
in one of the UNIX newsgroups.
"Apparently Solaris 2.3/2.4/2.5
have a TCP/IP bug that causes every packet to be sent twice
when the network delay exceeds some threshold. You will observe
the modem receiving data most of the time, but the transfer
rate will be half of what it should be (1.6KB/s for 14.4, 3.2KB/s
for 28.8).
"In Windows the work-around
is to reduce the Default Receive Window from its default of
8192, thereby reducing the network delay. I haven't verified
this myself, as I rarely see the problem. If you can verify
this solution, let me know and I will get it into an FAQ.
"If you aren't using TCP/IP
on a LAN, you can set Receive Window to 4096 with no drop in
performance and an improvement in interactive response (while
downloading) of one or two seconds. Reducing the size of the
Default Receive Windows probably is probably a general fix for
many "mysterious" bugs, including the Solaris bug.
Q. How do I shut off Call Waiting?
A. Here are some answers.
Why won't Call Waiting
interrupt my modem connection?
Call Waiting is a phone service
option that allows you to be interrupted by an incoming call
while you are using the phone line. If you are using the phone
line for data or fax, the "beep" that signals the
incoming call can cause an abrupt disconnection, which can be
a problem.
To temporarily disable Call Waiting
for a single outgoing call, there is often a special code that
can be dialed before the phone number. With tone dialing service,
this special code is usually "*70" without the quotation
marks (e.g., instead of dialing say "555-1212",
you would dial "*70,555-1212", with the comma being
used to signal your modem to insert a brief pause between the
special code and the phone number); with pulse dialing service,
this special code may be "1170". Check with your
local phone company to be sure. Better comm programs have
an option to insert the special code automatically.
On the other hand, you may actually
want Call Waiting to interrupt a data or fax call, so
that you do not miss an important incoming call. However, V.34
modems are designed to overcome "line noise" like
Call Waiting, and they may not be disconnected by the "beep."
Other than getting another phone line, there may be no possible
work-around.
How do I keep my data/fax
call from being interrupted?
It goes like this. You have a single
line with multiple extensions that you use for both voice and
fax/data. You are on-line in the middle of a large file transfer.
Someone else picks an extension in another room, and bang, your
connection is lost sending the file transfer down the drain.
There is an easy way to prevent
this problem. Obtain a "Line Protector" for each extension
phone. When your modem is on-line, the Line Protector will automatically
prevent the attached phone from interrupting your connection.
A Line Protector is inexpensive, and readily available on the
Internet (e.g., Black Box or Hello Direct) or from Radio Shack (which calls it a
"TeleProtector"). Some "Call Routers" will
also provide this kind of protection.
Q. I have the latest version of Netscape
or MSIE, and I use Trumpet Winsock to dial in. Is this a problem?
A. Yes. You should not use Trumpet with the
latest browsers and email clients in the Windows 95/98 operating
system. Trumpet (the version we first handed out 3 years ago)
is NOT a 32 bit application, and cannot establish the proper
connections. You should be using Windows Dial Up Networking
to dialup with, NOT TRUMPET. To setup a Dialup Networking connection,
follow these instructions.
Q. I have general help questions such as
billing status, usage status, how to configure my email, how
to change my password, etc. Where can I find the answers to
them?
A. We have developed a very comprehensive
Online Help page. You can find that by clicking Help on the
menu at the bottom on any of our web pages. You will find most
of the answers to most of your questions within these pages.
HELP
From time to time we will be adding
to this page. In an effort to better serve you, if you have
any suggestions for content on this page, please email them to us. We will be happy to accept
any and all suggestions.
Q. I have lost my instructions on how to
install and configure my Eagles Nest CD. What do I do?
A. Go here and print out the page. This page is the
complete set of instructions on how to install our CD.
Q. When I try to access a page out on the
Web, I get the response from the server that "The Web Site
you have tried to access does not have a DNS entry." or
some similar message. What do I do? What causes this to happen?
A. The most common cause for this problem
is that the page you are trying to go to is not there anymore.
That is because the author or site owner has either taken it
down, or their server is not up and online. Another common cause
for this message is that you are not online. Make sure you are
connected. One more cause for this message is that you may have
entered the web site address (URL) incorrectly. Check the entry
and try reentering it.
Q. 'Save Password' gets lost, what do I do?
A. If you're using the original version of
Windows 95, you could be facing one of the flaws in that version
of the operating system. If you have a later version, in which
those flaws were remedied, it's possible that your password
file has become corrupt, or that your Dial-Up Networking application
needs to be re-installed. Let's look at the first scenario before
moving on to the others.
The Save Password feature of the
Dial-Up Networking application uses a function called password
caching, which stores passwords in encrypted files. Unfortunately,
it's not uncommon for password caching in the original version
of Windows 95 to stop working at some point for no apparent
reason; when this happens, either your password isn't saved
despite the Save Password box being checked, or that box is
grayed out, preventing you from using it. The good news is that
Microsoft offers a fix for this problem.
To determine which version of Windows
95 you're running, right-click on My Computer and select Properties.
With the General tab on top, you'll see the version number in
the upper part of the window. The versions of Windows 95 released
to date are 4.00.950 (original), 4.00.950a (also known as OSR
1) and 4.00.950 B (OSR 2); if you have either of the later versions,
chances are your Dial-Up Networking application is working properly.
But if you're running the original version of Windows 95, you
should download the Windows 95 Service Pack 1 to update your
version of the operating system to OSR 1, and then the latest
Windows 95 Password List Update, which fixes a password bug
in the Service Pack 1.
For the Service Pack 1, go to http://www.microsoft.com/windows/software/servpak1/sphome.htm, click on the Individual Users link, then
follow the download and installation instructions. Once the
Service Pack 1 is installed, go to http://www.microsoft.com/windows95/info/passwd.htm to download the Windows 95 Password List
Update; follow the installation instructions posted at that
site.
In the second scenario, if you're
already running Windows 95 OSR 1 or OSR 2, you'll need to determine
if your password file has become corrupt. To do that, you'll
have to delete your current password file and then re-enter
all your saved passwords for various programs, thereby creating
a new password file.
Search the Windows folder on your
hard drive for a file name comprising up to eight characters
of your user name plus the extension .pwl; if you don't have
User Profiles enabled on your machine (requiring you to enter
a user name and password each time you launch Windows 95), your
user name is whatever you typed in when you first ran Windows
95 and were prompted to enter such a name. Make sure your Dial-Up
Networking application isn't running, then delete this .pwl
file and reboot. The next time you enter a password in a program
and instruct the program to save it, a new .pwl file will be
created.
If your problem still exists after
deleting your old password file and creating a new one, the
last thing to try is a re-installation of Dial-Up Networking.
Go to THIS PAGE to download the latest version of the application
(msdun13.exe), but don't run it immediately after downloading
it; be sure to uninstall your current Dial-Up Networking application
with Windows 95's Add/Remove Programs wizard before installing
the upgrade, to ensure that any damaged files are completely
removed. To do this, open the Control Panel, double-click on
Add/Remove Programs, click on the Windows Setup tab, highlight
Communications and click on Details. Uncheck the Dial-Up Networking
box, click on OK and restart your computer. Then double-click
on your downloaded msdun12.exe file to install the new Dial-Up
Networking application.
Note that if you have any components
that rely on Dial-Up Networking to function, such as Windows
95's Direct Cable Connection, those components will have to
be re-installed. You can use the Add/Remove Programs wizard
for that purpose.
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