intel 536EP random connection speed to ISP (<10% 45333 bps, mostly often slow 33000)
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Distribution: Mandriva mostly, vector 5.1, tried many.Suse gone from HD because bad Novell/Zinblows agreement
Posts: 1,606
Rep:
intel 536EP random connection speed to ISP (<10% 45333 bps, mostly often slow 33000)
Hi
My dialup connection is seldom at 45 kbps, that is the modem connects 95% of the time in V34.
On some rare occasions it connected at 45333 in V90 or V92 mode.
Any suggestion of what to do? Where to look?
Can/Do ISP descriminate against linux user?
(I just have this daft wonder now that I cannot get a 45 k dialup all the time)...
I use mandrake 10.1 CE, kernel 2.6.8.1
The i 536EP driver is from the intel website
I connect using kppp.
The modem (intel 536EP based) is on a PCI card.
I have ipv6 installed.
- the local telephone loop is ok because our other computer, a zindoze, always connect at 45 k
- I cannot test the modem in zindoze unless I move the PCI modem card into the other computer
(the modem is nearly new so I do not see why it would be faulty)
- I think I tried to swap the modem cable from the 2 computers, no changes. They are the same length
- I have played more than enough with the AT commands to try to force a V90/V92 mode (for 2 weeks)
(I tried series of about 30 dial up / hang up, and after connecting once at 45 k, I did not the next time...) I have even read the full i536ep AT command list
- I have played with the connection port speed (the kppp drop down menu, and always used one of the 2 fastest speed)
- I have tried wvdial instead of kppp. Same problem low speed, but easier to use as CLI
to read the messages
I have tried to put that damn "deflate" option in ppp configuration file, as I thought it would help.
I does not, I cannot connect if I try tweecking the file.
BTW I am still a newbee, so any suggestion will be appreciated.
I am very puzzled that I so seldom get a fast connection...
Thanks
regards
Last edited by Emmanuel_uk; 03-17-2005 at 01:45 AM.
this is most likely due to incorrect or unneeded modem initialization strings........I recommend googling for information on it........also check this page out http://www.jenera.com/modems/
Distribution: Mandriva mostly, vector 5.1, tried many.Suse gone from HD because bad Novell/Zinblows agreement
Posts: 1,606
Original Poster
Rep:
speedcom + modem not in Jenera.
So I used no special string with kppp, as root.
Connected the first time round at 45300 bps. Youhhaa
Disconnect, then tried as user 33200 :-(
Disconnect again try as root 33200 :-( again
tried about 10 times, no luck, changed parameters in Kppp: no luck
Tried string +MS=V90,1,0,0 (accepted by modem)
Disconnect again try as root 33200 :-( again
Tried kppp and wvdial, compared kppp input of user and root.
looked at /etc/kppprc and /etc/kde/kpprc
and also /.kde/share/config/kpprc
No luck
Will post tail -f /var/log/syslog if this can help
and /etc/kppprc
Last edited by Emmanuel_uk; 04-26-2005 at 01:26 AM.
Distribution: Mandriva mostly, vector 5.1, tried many.Suse gone from HD because bad Novell/Zinblows agreement
Posts: 1,606
Original Poster
Rep:
verbose pppd output
The last time I connected at 45333 bps the only init string was ATZ.
I also tried +MS=V90,,,,,45333 and many other strings
accepted OK but still giving 33200 bps
Now, I found /etc/sysconfig/network-scripts/ifcfg-ppp0
Does this file above take over /etc/ppp/options?
Distribution: Mandriva mostly, vector 5.1, tried many.Suse gone from HD because bad Novell/Zinblows agreement
Posts: 1,606
Original Poster
Rep:
In desperation, I installed zinblows to get the init string from the
modem log.
I also tried the modem within zinblows and got 44000 bps out of it, first time round.
I copied the 5 init strings from zinblows into wvdial,
still got 33200 or 28000 bps.
I checked the version of the intel driver does support V9x as per readme.txt.
I start wondering if this is a kernel compatibility issue or something else
Distribution: Mandriva mostly, vector 5.1, tried many.Suse gone from HD because bad Novell/Zinblows agreement
Posts: 1,606
Original Poster
Rep:
modem handshake protocol broken / not working
Gave up.
Put the modem in another PC (known ISP, cable and connection always >= 44000 bps)
, in zinblows), same problem as linux now, connected only once at 44600,
rest of the time at 32000
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