Bug 4624 - NetworkManager loses Wi-Fi connection
: NetworkManager loses Wi-Fi connection
Status: CONFIRMED
Product: Desktop Bugs
Classification: ROSA Desktop
Component: Main Packages
: Fresh
: All Linux
: Normal normal
: ---
Assigned To: ROSA Linux Bugs
: ROSA Linux Bugs
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2014-11-06 16:53 MSK by Konstantin Vlasov
Modified: 2014-11-06 20:49 MSK (History)
2 users (show)

See Also:
RPM Package:
ISO-related:
Bad POT generating:
Upstream:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Konstantin Vlasov 2014-11-06 16:53:53 MSK
Sometimes NetworkManager suddenly disconnects from already connected Wi-Fi network, and after that refuses to reconnect.

More details:
1. Network was connected, then without any specific action NM tells that it is disconnected; ifconfig shows that no IP is assigned for the interface.
2. I click on the NM tray icon, select network, click Connect, type the password, press Enter. Error message is shown: "Failed to add conection. No session found for uid 500 (unknown)"
3. I open the NM connection editor - and the list of connections is empty (earlier there were two connections: one wired and one wireless). I try to add a new Wireless connection, enter the parameters, click OK - and the connection is not added, the list remains empty.

Only rebooting fixes this problem, but it may reappear again at any moment.

Hardware probe: http://hw.rosalinux.ru/index.php?probe=3962925053
Comment 1 Vladimir Potapov 2014-11-06 17:10:32 MSK
I confirm the issue for R4 lxde and 
http://hw.rosalinux.ru/index.php?probe=98eff62aa8
Comment 2 Vladimir Potapov 2014-11-06 17:14:44 MSK
(In reply to comment #0)
> Sometimes NetworkManager suddenly disconnects from already connected Wi-Fi
> network, and after that refuses to reconnect.

> Only rebooting fixes this problem, but it may reappear again at any moment.
In my case it's work after logout-login
Comment 3 Konstantin Vlasov 2014-11-06 17:18:17 MSK
Sorry, didn't check logout-login. When it happens again I'll try it.
Comment 4 Eugene Shatokhin 2014-11-06 17:37:37 MSK
(In reply to comment #3)
> Sorry, didn't check logout-login. When it happens again I'll try it.

When the problem happens, please try the following (as root):

   systemctl restart NetworkManager.service

See if this brings the connection up again.
Comment 5 Konstantin Vlasov 2014-11-06 20:49:15 MSK
(In reply to comment #4)
> (In reply to comment #3)
> > Sorry, didn't check logout-login. When it happens again I'll try it.
> 
> When the problem happens, please try the following (as root):
> 
>    systemctl restart NetworkManager.service
> 
> See if this brings the connection up again.

Unfortunately, it didn't help. NM reinitialized, rescanned the list of Wi-Fi networks (it was visible as the list of available networks contained only 3 network after restart, and then new networks were being added), but trying to connect still gave the same error, and the list in the Connection Editor still was empty.


(In reply to comment #2)
> In my case it's work after logout-login

Confirm, logout-login fixes NM here too.