ISP modem dialup fails, but only @home not via PABX

P

Post Master

Symptoms - dialup works via PABX but not on residential phone line,
seems to fail during/after authentication.

Win-XP(Home)
Microsoft Firewall enabled
Intel Celeron 2.7 GHz
Modem type: Smart Link 56K Voice Modem

If I initiate the dialup via Internet Explorers "Connect" window I get
one of two
failure modes :

Dialing attempt 1.
Dialing...
Unable to establish a connection.

Dialing attempt 1.
Dialing...
Unable to connect because of a configuration error.

This is not an insurmountable problem, as I can init. the dialup from
the network connections on the startup menu, properties -> Dial now

The connection via my work PABX is as expected.

However when I dial from home, same sort of copper phone line (only
difference is send a preceding 0 to get a PABX line, at home I post-fix
a four digit PIN for my home phone), I get the errors below after
authentication.

I wonder if this could be related to the firewall? I have read in other
posts that this has caused problems and disabling it has solved these.
I should be able to disable the firewall during the dialup and then
enable it straight after should I not. But why different behaviour
between the PABX and residential dialup?

I know that the user details below are correct because these work via
the PABX dialup. But I do not get the typical "User Authenicated" type
confirmation immediately after password is read - suggesting that the
problem may be related to incorrect transfer of the password.

The @#}..@#} responses get steadily echoed to the screen for a couple
of minutes then eventually the connection dies.


User Access Verification

username:[email protected]
password:shpxlbh
~~ÿ}#À!}!}.} %}"}&} }*} } }#}$À#}%}&}%"ÿ
}'}"}(}"}1}$}%ô}3})}!isdnx2ÝÃ~~ÿ}#À!}!}/} %}"}&} }*} }
}#}$À#}%}&}%"ÿ }'}"}(}"}1}$}%ô}3})}!isdnx2'o~~ÿ}#À!}!}0}
%}"}&} }*} } }#}$À#}%}&}%"ÿ
}'}"}(}"}1}$}%ô}3})}!isdnx2;ì~~ÿ}#À!}!}1} %}"}&} }*} }
}#}$À#}%}&}%"ÿ }'}"}(}"}1}$}%ô}3})}!isdnx2t@~~ÿ}#À!}!}2} %}"}&}
}*} } }#}$À#}%}&}%"ÿ }'}"}(}"}1}$}%ô}3})}!isdnx2´¼~~ÿ}#À!}!}3}
%}"}&} }*} } }#}$À#}%}&}%"ÿ
}'}"}(}"}1}$}%ô}3})}!isdnx2û}0~~ÿ}#À!}!}4} %}"}&} }*} }
}#}$À#}%}&}%"ÿ }'}"}(}"}1}$}%ô}3})}!isdnx2%M~~ÿ}#À!}!}5} %}"}&}
}*} } }#}$À#}%}&}%"ÿ }'}"}(}"}1}$}%ô}3}

and

username:[email protected]
password:shpxlbh
~~ÿ}#À!}!m} %}"}&} }*} }
}#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2ëe~~ÿ}#À!}!n} %}"}&}
}*} } }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2+™~~ÿ}#À!}!o}
%}"}&} }*} }
}#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2d5~~ÿ}#À!}!p} %}"}&} }*}
} }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2Ͷ~~ÿ}#À!}!q} %}"}&}
}*} } }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2,}:~~ÿ}#À!}!r}
%}"}&} }*} }
}#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2Bæ~~ÿ}#À!}!s} %}"}&}
}*} } }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2}-J~~ÿ}#À!}!t}
%}"}&} }*} }
}#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2Ó}7~~ÿ}#À!}!u} %}"}&}
}*} } }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2œ»~~ÿ}#À!}!v}
%}"}&} }*} } }#}$À#}%}&}0lVÜ}'}"}(}"}1}$}%ô}3})}!isdnx2\G~

Here is the modem log (below), the three instances with ====
underlining concern me, why should an abort be initiated when there is
no apparent cause for this? Why so much activity after the abort? Is it
possible that all of the above gumf is actually generated on my side
and has not come from the ISP ?

C:\WINDOWS\ModemLog_Smart Link 56K Voice Modem.txt

22:07:25.046 - File: C:\WINDOWS\system32\tapisrv.dll, Version 5.1.2600

22:07:25.046 - File: C:\WINDOWS\system32\unimdm.tsp, Version 5.1.2600

22:07:25.046 - File: C:\WINDOWS\system32\unimdmat.dll, Version 5.1.2600

22:07:25.046 - File: C:\WINDOWS\system32\uniplat.dll, Version 5.1.2600

22:07:25.046 - File: C:\WINDOWS\system32\drivers\modem.sys, Version
5.1.2600
22:07:25.046 - File: C:\WINDOWS\system32\modemui.dll, Version 5.1.2600

22:07:25.046 - File: C:\WINDOWS\system32\mdminst.dll, Version 5.1.2600

22:07:25.046 - Modem type: Smart Link 56K Voice Modem
22:07:25.046 - Modem inf path: mdmhamrw.inf
22:07:25.046 - Modem inf section: Modem1
22:07:25.046 - Matching hardware ID:
pci\ven_2000&dev_2800&subsys_2800163c
22:07:25.125 - 460800,8,N,1, ctsfl=1, rtsctl=2
22:07:25.125 - Initializing modem.
22:07:25.140 - Send: AT<cr>
22:07:25.140 - Recv: <cr><lf>OK<cr><lf>
22:07:25.140 - Interpreted response: OK
22:07:25.156 - Send: AT &F E0 V1 &A3 &D2 &C1 S0=0<cr>
22:07:25.156 - Recv: <cr><lf>OK<cr><lf>
22:07:25.156 - Interpreted response: OK
22:07:25.171 - Send: ATS7=60S19=0L1M1\N3%C3&H1N1X4<cr>
22:07:25.171 - Recv: <cr><lf>OK<cr><lf>
22:07:25.171 - Interpreted response: OK
22:07:25.171 - Waiting for a call.
22:07:25.187 - Send: at#cid=1<cr>
22:07:25.187 - Recv: <cr><lf>OK<cr><lf>
22:07:25.187 - Interpreted response: OK
22:07:25.203 - Send: ATS0=0<cr>
22:07:25.203 - Recv: <cr><lf>OK<cr><lf>
22:07:25.203 - Interpreted response: OK
22:07:25.203 - 115200,8,N,1, ctsfl=1, rtsctl=2
22:07:25.203 - Initializing modem.
22:07:25.218 - Send: AT<cr>
22:07:25.218 - Recv: <cr><lf>OK<cr><lf>
22:07:25.218 - Interpreted response: OK
22:07:25.234 - Send: AT &F E0 V1 &A3 &D2 &C1 S0=0<cr>
22:07:25.234 - Recv: <cr><lf>OK<cr><lf>
22:07:25.234 - Interpreted response: OK
22:07:25.250 - Send: ATS7=60S19=0L1M1\N3%C3&H1N1X4<cr>
22:07:25.250 - Recv: <cr><lf>OK<cr><lf>
22:07:25.250 - Interpreted response: OK
22:07:25.250 - Dialing.
22:07:25.265 - Send: ATDT*###,,,,,,####,,,,,,#,,,,,,#<cr>
22:07:29.750 - Attempting to abort current command
==================================================
22:07:29.750 - Send: <cr>
22:07:30.062 - Recv: <cr><lf>NO CARRIER<cr><lf>
22:07:30.062 - Interpreted response: No Carrier
==================================================
22:07:30.062 - Hanging up the modem.
==================================================
22:07:30.078 - Send: ATH<cr>
22:07:30.093 - Recv: <cr><lf>OK<cr><lf>
22:07:30.093 - Interpreted response: OK
22:07:30.093 - 460800,8,N,1, ctsfl=1, rtsctl=2
22:07:30.093 - Initializing modem.
22:07:30.109 - Send: AT<cr>
22:07:30.109 - Recv: <cr><lf>OK<cr><lf>
22:07:30.109 - Interpreted response: OK
22:07:30.125 - Send: AT &F E0 V1 &A3 &D2 &C1 S0=0<cr>
22:07:30.125 - Recv: <cr><lf>OK<cr><lf>
22:07:30.125 - Interpreted response: OK
22:07:30.140 - Send: ATS7=60S19=0L1M1\N3%C3&H1N1X4<cr>
22:07:30.140 - Recv: <cr><lf>OK<cr><lf>
22:07:30.140 - Interpreted response: OK
22:07:30.140 - Waiting for a call.
22:07:30.156 - Send: at#cid=1<cr>
22:07:30.156 - Recv: <cr><lf>OK<cr><lf>
22:07:30.156 - Interpreted response: OK
22:07:30.171 - Send: ATS0=0<cr>
22:07:30.171 - Recv: <cr><lf>OK<cr><lf>
22:07:30.171 - Interpreted response: OK
22:07:30.171 - Session Statistics:
22:07:30.171 - Reads : 30 bytes
22:07:30.171 - Writes: 78 bytes
 
K

Kadaitcha Man

Post Master <[email protected]>, the infected skid-row bum
and quivering cloven hoofter who likes ruthless dolphin clubbing with
beagles, and whose partner is an easy girl with a ripe hairy taco, wrote
in said:
Symptoms - dialup works via PABX but not on residential phone line,
at home I post-fix a four digit PIN for my home phone)
I wonder if this could be related to the firewall?

****ing idiot.



--
Cooking tonight: Busted used tampons next to impaired giant garden slug
brain and stork droppings marinade under defeated rattlesnake lung,
dished up in a circulating bowl overflowing with expensive bits of acorn
in rat piss, a side of mongoose thyroid gland and a pitcher of
coagulated white blood cells.
 
G

Gordon

Post said:
Symptoms - dialup works via PABX

PLEASE restrict your crossposting to a maximum of THREE /related/ groups -
many people will have automatically deleted your post because a) you have
crossposted to more than three groups, and b) because you are using
googlegroups.
 
K

Kadaitcha Man

Gordon <[email protected]>, the griping vagrant and easy pud
fuddler who likes injurious tubespout riding with roadkill, and whose
partner is a groupie with a seedy fluttering love wallet, wrote in
PLEASE restrict your crossposting to a maximum of THREE /related/
groups - many people will have automatically deleted your post
because a) you have crossposted to more than three groups

The irony in that statement is totally lost on you, isn't it, fungusbrains?



--
Cooking tonight: Dishonoured dead animals garnished with toasted cadaver
foreskins and mudskipper entrails dressing, served in a congealing
bucket overflowing with well-done poison-dart frog, thin cooked
unidentified wriggly things and snail with specks of poultry, dressing,
a side of grains and a can of limpid eyeball fluid.
 
P

Post Master

Gordon said:
PLEASE restrict your crossposting to a maximum of THREE /related/ groups -
many people will have automatically deleted your post because a) you have
crossposted to more than three groups, and b) because you are using
googlegroups.

No cross-posting abuse intended - the Google style guide used to be a
maximum of *FIVE* target groups in a post, which I have dutifully stuck
to since day 0. It may well have changed since then -- I don't read the
style guide routinely.

Furthermore, given that I found recent hits regarding "modem dialup
problems" on all of

microsoft.public.windowsxp.general
24hoursupport.helpdesk
demon.tech.modems
comp.dcom.modems
microsoft.public.windowsxp.help_and_support

I fail to agree with the implication that these are unrelated.
 
G

Gordon

Post said:
No cross-posting abuse intended - the Google style guide used to be a
maximum of *FIVE* target groups in a post,

Google is wrong. What you must realise is that you are using a web-based
access to Usenet, not a web forum. Unless you are behind a corporate
firewall I would strongly suggest that you use a proper newsreader rather
than googlegroups - if only for the second reason I posted - many people
automatically block posts from googlegroups and so won't see your posts at
all.
 
G

Gary A. Edelstein

Symptoms - dialup works via PABX but not on residential phone line,
seems to fail during/after authentication.
Do you hear the modem, dial, handshake and connect? Then do you lose the
connection? It's weird you don't get a connect message in your log.
Maybe it never completes the call. It's also weird that it shows your
port speed to be 460800 after the call is dropped, but it's 115200 before
you dial.

It may be a poor connection due to line conditions. Try disabling v.90
and only allow a v.34 connection and see if that helps. You'll need to
enter the proper dial string to disable v.90. Do you have an AT command
reference table for your modem?

There may be something weird with the home line wiring, grounding or
voltages that is screwing up the modem. Why would it go to 460800 port
speed after a failed connection?

You could also try dialing when logged in under a different XP username
and profile. I've seen instances where a dialup modem doesn't behave
properly under one profile and does correctly under another for reasons
that I can't fathom yet.

Gary E
 
K

Ken Blake, MVP

Post said:
No cross-posting abuse intended - the Google style guide used to be a
maximum of *FIVE* target groups in a post, which I have dutifully
stuck to since day 0. It may well have changed since then -- I don't
read the style guide routinely.


I don't think style guides matter. What matters is that excessive
crossposting looks like spam and will often therefore be ignored. Other than
that, there's no particular reason why *any* number of newsgroups is too
many, if they are all related to your question. Neither three nor five is a
magic number.

However realize that here in the Windows XP newsgroups (where I'm seeing
your message), many of the same people frequent newsgroups like
microsoft.public.windowsxp.general, ...basics, ...newusers, etc. So posting
to more than one of these hardly increases your audience at all.

Furthermore, given that I found recent hits regarding "modem dialup
problems" on all of

microsoft.public.windowsxp.general
24hoursupport.helpdesk
demon.tech.modems
comp.dcom.modems
microsoft.public.windowsxp.help_and_support

I fail to agree with the implication that these are unrelated.


I don't know anything about the non-Microsoft newsgroups in that list, but
the last newsgroup is *definitely* unrelated and has nothing to do with your
question. But that's Microsoft's fault, not yours; it's the newsgroup with
the worst name I've ever seen. It's not a place to go for help and support
for Windows XP, it's a place to go for questions about the Windows XP Help
and Support *feature* (Start | Help and Support).
 
P

Post Master

Thanks for various productive suggestions.
I have some feedback in two categories :

REGARDING THE CORE MODEM PROBLEM:

Malke> so you know the modem is good since it works outside of your
home. In that case, I'd have the telephone company come out and check
your phone lines.

My logic exactly, however I am not sure that it is the telephone line,
simply because the username is apparently accepted, whether or not the
password is accepted is unknown. See reply below relating to kbaud
selected.




Gary> Do you hear the modem, dial, handshake and connect? Then do you
lose the connection? It's weird you don't get a connect message in
your log. Maybe it never completes the call.

Yes, all the usual modem tones are there until the username prompt
appears (then the default ATM1 command switches off the modem speaker
output). There is one difference compared with what I remember from
years back, nowadays I hear a different sound a few seconds after the
handshaking begins, it sounds like a gong being hit and then the echo
coming back, first low volume then increasing in volume with quite a
bit of reverb. After this the tone handshaking continues for a brief
period then the username prompt appears (the tone speaker output has
been disabled just before this).
Is this echo maybe something to do with baud rate negotiation?

My first plan would be to (try to) change to ATM2 (Speaker always on)
then I can get a clue as to whether one party is waiting for a
handshake response.


Gary> You'll need to enter the proper dial string to disable v.90. Do
you have an AT command reference table for your modem?

I have AT commands for an older modem, which I guess will be carried
through to newer models. However this list does not include the AT
command for changing v.92 protocol version - I guess I should find it
at my vendor's site (www.smartlink.com). What is the usual way to enter
an AT command setup string, is it using one of the modem property
settings tabs (one provides an option like [Use modem command string])
or is it by means of bringing up the terminal window (which is off by
default). This terminal window I seem to remember only provides a
continue button and then you proceed with dialling out.


Gary> There may be something weird with the home line wiring, grounding
or voltages that is screwing up the modem. Why would it go to 460800
port speed after a failed connection?

Would it get as far is it did with voltage level problems? Here you
have raised a point that I have to sheepishly admit a snafu on my part.
That modem log I attached was not for the ISP call, it was for a
subsequent call to my phone provider to query my account status. In
that log the abort/disconnect was in fact valid at the end of the call.

I have captured a log for an ISP call (very unfortunately I did not
bring this to work today), and this now shows the result of the baud
negotation (it settled on something like 33600 bps from memory). Of
course the smoking gun would have been lower down in the log, but other
home committments meant that I did not delve into that any further (to
be honest the first three post-responses yesterday did not give me hope
for a news-group solution so I had resigned myself to my own efforts).
I did resolve to attempt to use an AT code to maybe restrict modem
speed to say 15000 bps to see if it is a speed problem.


Gary> You could also try dialing when logged in under a different XP
username and profile.

Certainly an idea to try, I have been using the bog standard USER
account. I would have thought this was the best option, the modem
drivers were installed from that account.


REGARDING THE CROSS CROSS-POSTING REPLIES


Gordon> What you must realise is that you are using a web-based access
to Usenet, not a web forum. Unless you are behind a corporate firewall
I would strongly suggest that you use a proper newsreader rather than
googlegroups

I am behind a company firewall, but I am interested in other newsreader
options anyway. Is it just a different URL that links to the newsreader
- I prefer not to have to install any software just to access Usenet by
other means.


Gordon> if only for the second reason I posted - many people
automatically block posts from googlegroups and so won't see your posts
at all.

Malke> Since your crossposting includes groups not on the Microsoft
server, replies including those outside groups will fail. So you are
limiting yourself and you don't want to limit the answers!

Precisely - which is exactly why I always post to five groups when I
can (and I always perform a google groups search to find these five).
I have noticed that in the last few years replies have been a bit thin
on the ground, so if I cannot get this alternative newsreader access to
Usenet going I will just have to post each message five times, to one
group at a time. Not at all intending to waste bandwidth or abuse the
system, it's all about maximum exposure within reasonable bounds.


Ken Blake> I don't know anything about the non-Microsoft newsgroups in
that list, but
the last newsgroup is *definitely* unrelated and has nothing to do with
your
question.

Funny - the following question (and proffered reply) at
microsoft.public.windowsxp.help_and_support are very similar to my
current problem. You may well be right Ken, but if people continue to
use it for the same reasons I need help, why not just go with the flow?
 
G

Gordon

Post said:
Gordon> What you must realise is that you are using a web-based access
to Usenet, not a web forum. Unless you are behind a corporate firewall
I would strongly suggest that you use a proper newsreader rather than
googlegroups

I am behind a company firewall, but I am interested in other
newsreader options anyway. Is it just a different URL that links to
the newsreader - I prefer not to have to install any software just to
access Usenet by other means.

If you are using Windows XP/W2K then you already HAVE software installed -
Outlook Express!
 
F

fdr

Gordon, Usenet access from MS-Outlook Express ?

Maybe I'm overlooking the obvious, but I have never seen an option to
access newsgroups in Microsoft Outlook. "Help->Contents and Index"
knows nothing about "newsgroups" and none of the other main menu items
seem to reference this function.

If you meant Outlook Express and not Outlook, I would be very reluctant
to fire this up for risk of damaging my proxy server (and other)
settings that may disrupt Outlook. Outlook Express does appear to be
installed but I have never used it.

C:\Program Files\Outlook Express
csapi3t1.dll 65,593 2001-05-08 2:00:00 PM
msimn.exe 42,768 2001-05-08 2:00:00 PM
msoe.dll 1,174,288 2001-05-08 2:00:00 PM
msoe.txt 22,151 2001-05-08 2:00:00 PM
msoeres.dll 911,872 2001-05-08 2:00:00 PM
oeimport.dll 74,512 2001-05-08 2:00:00 PM
oemig50.exe 63,760 2001-05-08 2:00:00 PM
oemiglib.dll 39,184 2001-05-08 2:00:00 PM
setup50.exe 75,024 2001-05-08 2:00:00 PM
wab.exe 20,752 2001-05-08 2:00:00 PM
wabfind.dll 9,488 2001-05-08 2:00:00 PM
wabimp.dll 84,752 2001-05-08 2:00:00 PM
wabmig.exe 34,576 2001-05-08 2:00:00 PM
 
G

Gordon

Gordon, Usenet access from MS-Outlook Express ?

Maybe I'm overlooking the obvious, but I have never seen an option to
access newsgroups in Microsoft Outlook.

Typical confusion. Outlook EXPRESS is nothing to do with Outlook. Outlook
comes with MS Office, Outlook EXPRESS comes with Internet explorer and is in
fact the successor to Microsoft Mail and News. Every PC that has Windows XP
or W2K has outlook EXPRESS installed by default, and in fact in XP you can't
remove it.
 
M

Malke

Post said:
Malke> Since your crossposting includes groups not on the Microsoft
server, replies including those outside groups will fail. So you are
limiting yourself and you don't want to limit the answers!

Precisely - which is exactly why I always post to five groups when I
can (and I always perform a google groups search to find these five).
I have noticed that in the last few years replies have been a bit thin
on the ground, so if I cannot get this alternative newsreader access
to Usenet going I will just have to post each message five times, to
one group at a time. Not at all intending to waste bandwidth or abuse
the system, it's all about maximum exposure within reasonable bounds.

No, you'd post one crosspost to the ISP-hosted groups and one crosspost
to any MS server groups. Or just live with things the way they are and
understand why some people might not be able to answer.

I hope you get the modem issue resolved. Maybe there is a different
access number you can use at home? One that handles the newer standard?
This is really on your ISP to provide.

Malke
 
G

Gary A. Edelstein

Thanks for various productive suggestions.
I have some feedback in two categories :

Gary> Do you hear the modem, dial, handshake and connect? Then do you
lose the connection? It's weird you don't get a connect message in
your log. Maybe it never completes the call.

Yes, all the usual modem tones are there until the username prompt
appears (then the default ATM1 command switches off the modem speaker
output). There is one difference compared with what I remember from
years back, nowadays I hear a different sound a few seconds after the
handshaking begins, it sounds like a gong being hit and then the echo
coming back, first low volume then increasing in volume with quite a
bit of reverb. After this the tone handshaking continues for a brief
period then the username prompt appears (the tone speaker output has
been disabled just before this).
Is this echo maybe something to do with baud rate negotiation?

My first plan would be to (try to) change to ATM2 (Speaker always on)
then I can get a clue as to whether one party is waiting for a
handshake response.
If you get the username dialog in terminal mode then the connection is
completed. My guess is the phone line can't sustain the connection right
after the initial connect and your username and password is never correctly
communicated and ultimately the remote modem drops the connection.
Gary> You'll need to enter the proper dial string to disable v.90. Do
you have an AT command reference table for your modem?

I have AT commands for an older modem, which I guess will be carried
through to newer models. However this list does not include the AT
command for changing v.92 protocol version - I guess I should find it
at my vendor's site (www.smartlink.com). What is the usual way to enter
an AT command setup string, is it using one of the modem property
settings tabs (one provides an option like [Use modem command string])
or is it by means of bringing up the terminal window (which is off by
default). This terminal window I seem to remember only provides a
continue button and then you proceed with dialling out.

Gary> There may be something weird with the home line wiring, grounding
or voltages that is screwing up the modem. Why would it go to 460800
port speed after a failed connection?

Would it get as far is it did with voltage level problems? Here you
have raised a point that I have to sheepishly admit a snafu on my part.
That modem log I attached was not for the ISP call, it was for a
subsequent call to my phone provider to query my account status. In
that log the abort/disconnect was in fact valid at the end of the call.

I have captured a log for an ISP call (very unfortunately I did not
bring this to work today), and this now shows the result of the baud
negotation (it settled on something like 33600 bps from memory). Of
course the smoking gun would have been lower down in the log, but other
home committments meant that I did not delve into that any further (to
be honest the first three post-responses yesterday did not give me hope
for a news-group solution so I had resigned myself to my own efforts).
I did resolve to attempt to use an AT code to maybe restrict modem
speed to say 15000 bps to see if it is a speed problem.
You should post the correct log. Based on settling on 33.6 as a connect
speed, that's a strong clue that you have line quality problems. The modem
will automatically try to negotiate the best connection speed. If your ISP
only supports v.90, it will not negotiate a v.92 connection. It may end up
negotiating a poor v.90 connection, which is harder to maintain than a good
v.34 connection. Hence, my recommendation to set the modem to disable v.90
(and v.92).

Line problems can sometimes be caused by poor wiring at the location and/or
devices connected to the line. These are variables you could have control
over. Try disconnecting all devices from the line and try again. If that
works, then reconnect them one by one until you zero in on the culprit.

If disconnecting all devices doesn't work, then try different phone jacks. If
you are savvy enough, you can also inspect your phone wiring and connections
at each of the boxes. If you have access to the junction box outside where
the phone line comes in, it may be possible to disconnect the inside wiring
and connect the modem directly to the phone line. If that has the problems,
then you know it's the phone co.

This pdf apparently has the disable v.90/92 command:

http://www.smlink.com/objects/ATCommands.pdf

See page 29. You use the +MS command to set the speed parameters. I'd try
this first in the extra settings box in Windows DUN:

+MS=34,0,4800,28800

If that doesn't sustain the connection, lower the max step by step. This is
the next one to try:

+MS=34,0,4800,26400

This page outlines how to enter extra AT commands in Windows DUN:

http://www.vicnet.net.au/help/windows/xp/tweakdun.htm

Or you can enter it in the terminal box with the appropriate 'AT' in front.

Gary E
 
F

Flunkett Clogwheel

Is the ISP expecting CLI data and are you witholding it at home? Not sure on
your locale but in the UK adding 1470 to the number to dial forces CLI to be
sent, the isp gets this and then lets you in.

Just a shot in the dark..........
 
P

Post Master

Interim feedback to keep the thread active
· The smoking gun log entries
· AT command feedback
· Still pending the baud rate limiting plan

There were some more suggestions/questions in more replies late
yesterday, will get back to responding suitably later.



This is some of the log from the ISP dialup that fails authentication :

22:20:14.015 - Dialing.
22:20:14.031 - Send: ATDT##########,,,,,,,,,####<cr>

So this 52 sec gap is apparently all the dialling (there is 9x2 s
delay) and handshaking going on

22:21:06.468 - Recv: <cr><lf>MODULATION: V.92

See V.92 is accepted OK

22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>PROTOCOL: LAPM
22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>COMPRESSION: V.44
22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>CONNECT 37333<cr><lf>
22:21:06.468 - Interpreted response: Connect
22:21:06.468 - Connection established at 37333bps.

And the speed is 37.333 kbaud (I checked with what happened when I
dialled from work, it was 52.0 kbaud, not that much different - I don't
have the full log from the work diallup, just a couple of screenshots I
had the foresight to capture).

22:21:06.468 - Error-control on.
22:21:06.468 - Data compression on.
22:21:36.468 - Read: Total: 588, Per/Sec: 16, Written: Total: 126,
Per/Sec: 1

This ^^^ appears to be the transfer of username and password

22:21:56.781 - Hanging up the modem.

Hangs up after almost exactly 20 s - WHY ???

22:21:56.781 - Hardware hangup by lowering DTR.
22:21:57.296 - Detected CD dropped from lowering DTR
22:21:58.296 - Timed out waiting for response from modem

This timeout is exactly 1 s later, it does not appear to be the cause
of the DTR lowering?

22:21:58.312 - Send: ATH<cr>




I tried three AT commands last night, they can be entered as follows

[Start [Control Panel [Phone and Modem Options [Modems [Smartlink 56K
[Properties [Advanced
[Advanced Port Settings
{Receive Buffer 1(solve connection problems} 14{high speed} [14]
}
{Transmit Buffer 1(solve connection problems} 16{high speed} [16]
}
{Extra initialisation commands ATM2 ATW1 AT%C0
ATM2 speaker always on
ATW1 Report all modem progress info
AT%C0 Disable data compression \

ATM2 is phone (maintain speaker tones throughout)
23:57:47.265 - Sending user initialization commands.
23:57:47.281 - Send: ATM2<cr>
23:57:47.281 - Recv: <cr><lf>OK<cr><lf>
23:57:47.281 - Interpreted response: OK
23:57:47.281 - Dialing.

ATW1 FAILS (Report all modem progress info)
00:02:13.062 - Sending user initialization commands.
00:02:13.078 - Send: ATW1<cr>
00:02:13.078 - Recv: <cr><lf>ERROR<cr><lf>
00:02:13.078 - Interpreted response: Error
00:02:13.078 - TSP(0000): LINEEVENT: LINE_CLOSE

AT%C0 - FINE (Disable data compression)
23:41:37.562 - Sending user initialization commands.
23:41:37.578 - Send: ATM2 ATW1 AT%C0<cr>
23:41:52.625 - Recv: <cr><lf>COMPRESSION: NONE
23:41:52.625 - Interpreted response: Informative
23:41:52.625 - Recv: <cr><lf>CONNECT 75<cr><lf>
23:41:52.625 - Interpreted response: Connect
23:41:52.625 - Session Statistics:
23:41:52.625 - Reads : 51 bytes
23:41:52.625 - Writes: 78 bytes

Not too sure about the latter - normally it spits the dummy with
multiple "AT" strings in the command, I guess I should send multiple
commands something like
ATM2 W1 %C0


TBD : Have not visited the following yet for smart link modem command
sets

http://www.smlink.com/objects/ATCommands.pdf
http://www.vicnet.net.au/help/windows/xp/tweakdun.htm


Thanks for the efforts from all this far.
 
G

Gary A. Edelstein

Interim feedback to keep the thread active
· The smoking gun log entries
· AT command feedback
· Still pending the baud rate limiting plan

There were some more suggestions/questions in more replies late
yesterday, will get back to responding suitably later.

This is some of the log from the ISP dialup that fails authentication :

22:20:14.015 - Dialing.
22:20:14.031 - Send: ATDT##########,,,,,,,,,####<cr>

So this 52 sec gap is apparently all the dialling (there is 9x2 s
delay) and handshaking going on

22:21:06.468 - Recv: <cr><lf>MODULATION: V.92

See V.92 is accepted OK

22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>PROTOCOL: LAPM
22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>COMPRESSION: V.44
22:21:06.468 - Interpreted response: Informative
22:21:06.468 - Recv: <cr><lf>CONNECT 37333<cr><lf>
22:21:06.468 - Interpreted response: Connect
22:21:06.468 - Connection established at 37333bps.

And the speed is 37.333 kbaud (I checked with what happened when I
dialled from work, it was 52.0 kbaud, not that much different - I don't
have the full log from the work diallup, just a couple of screenshots I
had the foresight to capture).
It is a lot different, and it confirms this is a lousy connection. Also,
you said your ISP doesn't support v.92. I don't know if this is, in
fact, a v.92 connection. I doubt it.

A solid 26.4 v.34 connection will probably be OK on your line. That will
likely solve your problem unless there is something you aren't sending to
your ISP or you aren't sending something correctly.
22:21:06.468 - Error-control on.
22:21:06.468 - Data compression on.
22:21:36.468 - Read: Total: 588, Per/Sec: 16, Written: Total: 126,
Per/Sec: 1

This ^^^ appears to be the transfer of username and password

22:21:56.781 - Hanging up the modem.

Hangs up after almost exactly 20 s - WHY ???
As I said, probably can't sustain the connection so the remote modem
drops the connection when it can't communicate properly or when it can't
get your logon credentials properly.
22:21:56.781 - Hardware hangup by lowering DTR.
22:21:57.296 - Detected CD dropped from lowering DTR
22:21:58.296 - Timed out waiting for response from modem

This timeout is exactly 1 s later, it does not appear to be the cause
of the DTR lowering?
This is the normal hangup attempt you'll see in a log after a disconnect.
22:21:58.312 - Send: ATH<cr>




I tried three AT commands last night, they can be entered as follows

[Start [Control Panel [Phone and Modem Options [Modems [Smartlink 56K
[Properties [Advanced
[Advanced Port Settings
{Receive Buffer 1(solve connection problems} 14{high speed} [14]
}
{Transmit Buffer 1(solve connection problems} 16{high speed} [16]
}
{Extra initialisation commands ATM2 ATW1 AT%C0
ATM2 speaker always on
ATW1 Report all modem progress info
AT%C0 Disable data compression \

ATM2 is phone (maintain speaker tones throughout)
23:57:47.265 - Sending user initialization commands.
23:57:47.281 - Send: ATM2<cr>
23:57:47.281 - Recv: <cr><lf>OK<cr><lf>
23:57:47.281 - Interpreted response: OK
23:57:47.281 - Dialing.

ATW1 FAILS (Report all modem progress info)
00:02:13.062 - Sending user initialization commands.
00:02:13.078 - Send: ATW1<cr>
00:02:13.078 - Recv: <cr><lf>ERROR<cr><lf>
00:02:13.078 - Interpreted response: Error
00:02:13.078 - TSP(0000): LINEEVENT: LINE_CLOSE

AT%C0 - FINE (Disable data compression)
23:41:37.562 - Sending user initialization commands.
23:41:37.578 - Send: ATM2 ATW1 AT%C0<cr>
23:41:52.625 - Recv: <cr><lf>COMPRESSION: NONE
23:41:52.625 - Interpreted response: Informative
23:41:52.625 - Recv: <cr><lf>CONNECT 75<cr><lf>
23:41:52.625 - Interpreted response: Connect
23:41:52.625 - Session Statistics:
23:41:52.625 - Reads : 51 bytes
23:41:52.625 - Writes: 78 bytes

Not too sure about the latter - normally it spits the dummy with
multiple "AT" strings in the command, I guess I should send multiple
commands something like
ATM2 W1 %C0


TBD : Have not visited the following yet for smart link modem command
sets

http://www.smlink.com/objects/ATCommands.pdf
http://www.vicnet.net.au/help/windows/xp/tweakdun.htm
Connecting at 75 baud isn't exactly what you want...:)

I wouldn't bother with %C0 yet - I'm not sure why you're trying that at
this point. Once you get the AT command reference you'd see that W1
isn't supported.

Gary E
 
D

Dick Cardy

I have been following your problem and I can remember years ago having the
same problem which turned out to be a faulty card in the telco equipment. I
would suggest checking with your ISP to see if they can pull their
corresponding log as this may provide more pieces of the puzzle.

Dick
Who has a pet peeve about the incorrect use of the term Baud.
 

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