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Thread ID: 40236 2003-12-02 07:40:00 Modem Problems zqwerty (97) Press F1
Post ID Timestamp Content User
196500 2003-12-03 07:38:00 So have you got the right drivers for Win2000 then?

Win98SE isn't reporting the correct connect speed either. Win98SE is reporting the port speed. To get Win98Se to report the correct speed then you need to add W2 to extra settings on the modem. I know it's in the control panel but have not had to do this for some time. I don't use Win2000 and I don't use a dial up connection so can't test this for you right now.

Off to do a search on Google. :-)
Elephant (599)
196501 2003-12-03 07:43:00 You will never get 56000 bps in fact,that is the theoretical top speed,but due to the digital to analogue converters used in the telephone exchange,that speed will never actually get used.If you are getting 56000 on your little tv's in the task bar,unfortunately that reading isn't correct.It may not be far off,but not correct just the same.If you are getting 49000bps,think yourself lucky.75% of people don't even get that.If I was sent round by Telecom to fix your line(and that's my job) and you said you only got 49000bps,I'd have to say there is nothing I can do for you.Your line would probably test perfectly good,if you are getting that high.You could try Telecom,but they only gurantee 14400,so may tell you there is nothing they could to improve it.Good luck anyway.

Peter
Peter Coleman (597)
196502 2003-12-03 07:49:00 are you uninstalling the old drivers before installing the new ones?

isn't there a bug where winblows will use OEM.inf drivers instead of the proper ones?? (soz little rusty here).
tweak'e (174)
196503 2003-12-03 07:49:00 I soon have to go out so it is over for the evening, but I am now on Win2000 and it is still connecting at the wrong speed every second time. I have drivers for both o/s's for this modem.
Here is the details off the log showing good and bad connection.

Bad:
12-03-2003 20:27:11.041 - TSP(0000): LINEEVENT: LINECALLSTATE_PROCEEDING
12-03-2003 20:27:11.051 - Send: ATDT#########<cr>
12-03-2003 20:27:41.054 - Recv: <cr><lf>+MCR: V34<cr><lf>
12-03-2003 20:27:41.054 - Interpreted response: Informative
12-03-2003 20:27:41.054 - Recv: <cr><lf>+MRR: 26400<cr><lf>
12-03-2003 20:27:41.054 - Interpreted response: Informative
12-03-2003 20:27:41.465 - Recv: <cr><lf>+ER: LAPM<cr><lf>
12-03-2003 20:27:41.465 - Interpreted response: Informative
12-03-2003 20:27:41.485 - Recv: <cr><lf>+DR: V44<cr>
12-03-2003 20:27:41.485 - An unknown response was received while attemping to connect, but CD was high so completeing successfully
12-03-2003 20:27:41.485 - Connection established at 26400bps.
12-03-2003 20:27:41.485 - Error-control on.
12-03-2003 20:27:41.485 - Data compression off or unknown.
12-03-2003 20:27:41.485 - TSP(0000): LINEEVENT: LINECALLSTATE_CONNECTED

Good:
12-03-2003 20:23:21.571 - TSP(0000): LINEEVENT: LINECALLSTATE_DIALING
12-03-2003 20:23:21.571 - TSP(0000): LINEEVENT: LINECALLSTATE_PROCEEDING
12-03-2003 20:23:21.581 - Send: ATDT#########<cr>
12-03-2003 20:23:42.872 - Recv: <cr><lf>+MCR: V92<cr><lf><cr><lf>+
12-03-2003 20:23:42.872 - Unknown Response
12-03-2003 20:23:42.872 - Recv: MRR: 48000<cr><lf>
12-03-2003 20:23:42.872 - Unknown Response
12-03-2003 20:23:43.212 - Recv: <cr><lf>+ER: LAPM<cr><lf>
12-03-2003 20:23:43.212 - Interpreted response: Informative
12-03-2003 20:23:43.232 - Recv: <cr><lf>+DR: V44<cr>
12-03-2003 20:23:43.232 - An unknown response was received while attemping to connect, but CD was high so completeing successfully
12-03-2003 20:23:43.232 - Connection established at 115200bps.
12-03-2003 20:23:43.232 - Error-control on.
12-03-2003 20:23:43.232 - Data compression off or unknown.
12-03-2003 20:23:43.232 - TSP(0000): LINEEVENT: LINECALLSTATE_CONNECTED

They don't look different do they? Notice how it connected at the lowest speed so far.

I have tried the Win98Se driver on Win2000, no improvement.

Thanks for the tip on fax program, I will try that as soon as I have some time.
zqwerty (97)
196504 2003-12-03 08:01:00 Hmmmmmmmmmmm, looking back at my post I see that there is a significant little difference between the two connections. I will check more of them and if this is consistent then I don't see how it could be the line causing the problem, especially as, tentatively, it seems that Win98 is ok.
Have a good night, I'm off to do some work.
Regards Rob.
zqwerty (97)
196505 2003-12-03 09:51:00 I agree with Peter, it is not possible to connect at 56k
If you are getting 49k accept that gratefully as it is more then many people can get.
Jim B (153)
196506 2003-12-03 10:02:00 Have you checked with your ISP to see if they support v92, I read somewhere because its a new standard that not many ISP's are supporting it just yet.
It may be the reason because if I understand the standard correctly the handshaking is different between the older standard and v92
beama (111)
196507 2003-12-04 04:27:00 I have e-Mailed clearnet asking if they support V.92 standard. I have definitely confirmed that every second dial up Win2000 connects at 28.8Kbp/s or less without fail. I will do more evaluation of the problem. I have un-installed and re-installed the Win2000 driver for the modem in question. zqwerty (97)
196508 2003-12-04 05:44:00 I am not aware of any NZ ISP's who support V92 but a V92 modem will connect with V90 protocol if v92 is not available Jim B (153)
196509 2003-12-05 05:19:00 In my quest for more knowledge on this subject I came across this:

300 bps - 1960s through 1983 or so
1200 bps - Gained popularity in 1984 and 1985
2400 bps
9600 bps - First appeared in late 1990 and early 1991
19.2 kilobits per second (Kbps)
28.8 Kbps
33.6 Kbps
56 Kbps - Became the standard in 1998
ADSL, with theoretical maximum of up to 8 megabits per second (Mbps) - Gained popularity in 1999
In order to create faster modems, modem designers had to use techniques far more sophisticated than frequency-shift keying. First they moved to phase-shift keying (PSK), and then quadrature amplitude modulation (QAM). These techniques allow an incredible amount of information to be crammed into the 3,000 hertz of bandwidth available on a normal voice-grade phone line. 56K modems, which actually connect at something like 48 Kbps on anything but absolutely perfect lines, are about the limit of these techniques

Back to the problem.
Although Win98 dialup always connects at the highest speed for some reason Win2000 does not. Every second dial up it connects at 28000 approx. I am still working on this problem bearing in mind that the other identical modem was even less reliable, this one has a speaker volume problem. Maybe this was just a bad production run. Next week I am going to try a different make of modem as soon as the shop gets one.

Regards Robert.
zqwerty (97)
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