networkmanager(?) unreliable at detecting a 3G phone shared connection

Bug #319807 reported by Steve McInerney
2
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Have a laptop running 8.10. As a travelling device I use a 3G phone to 'network connect' through.
It does work - quite well when it works - but is ... temperamental to actually make work.
In that on the phone I need to "Connect" "Disconnect" "Connect" "Disconnect" cycle until NM finally recognises that the phone is there.
Sometimes it "just works" as soon as the phone is activated; other times it can be an exercise in patience for 10-20 minutes. :-(

The key lines I've found to watch for in syslog appear to be these as indicative of a failure:
Jan 21 10:53:19 geriatrix hal-dccm[13549]: CRITICAL: check_interface_cb: unable to listen on rndis port (990), server invalid
Jan 21 10:53:19 geriatrix hal-dccm[13549]: CRITICAL: check_interface_cb: unable to listen on legacy port (5679), server invalid

I've tried at various times:
killing the nm daemons; unloading the rndis kernel module; enabling/disabling networking. Unplug the phone etc. All to no avail. I can't find any one 'solution' that is reliable.

It's possible there is an override to tell NM (or whatever?) - hey ignore what you think is happening - do *this*. ???

See attached syslog extract showing a couple of fails followed by a final success.

$ lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10

Revision history for this message
Steve McInerney (spm) wrote :
Revision history for this message
Steve McInerney (spm) wrote :

Still broken in Jaunty beta/RC.

I assume is possibly related to https://bugs.edge.launchpad.net/bugs/330304 ?

Revision history for this message
Alexander Sack (asac) wrote :

1. please attach output of lshal when your modem is plugged in.
2. please run nm-modem-probe --verbose --export /dev/ttyUSB0 and provide the output.

Revision history for this message
Alexander Sack (asac) wrote :

sorry its ... /lib/udev/nm-modem-probe ...

Changed in network-manager (Ubuntu):
status: New → Incomplete
Revision history for this message
Pedro Villavicencio (pedro) wrote :

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to New. Thanks again!.

Changed in network-manager (Ubuntu):
status: Incomplete → Invalid
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