Network Manager troubleshooting

Solution 1:

You can look at System --> Administrator --> Log File Viewer, Under "dmseg" file to see if something with the authentication process is wrong

Some more experienced people will suggest to harvest the power of terminal by doing something like :

cat /var/log/* | grep network-manager > network-manager-output.txt

I hope you can find a solution to your problem

Solution 2:

I have the same problem, very annoying. I tried disabling the 11n with options iwlagn 11n_disable=1 11n_disable50=1, but didn't help much.

My latest attempt (an hour ago) is removing network-manager and installing wicd. It's too soon to tell if it works, but so far no problem.

sudo aptitude -d install wicd
sudo aptitude remove network-manager
sudo aptitude install wicd

Edit: What finally worked was this

sudo aptitude remove network-manager network-manager-gnome wicd wicd-gtk