I'm seeing this as well, in ubuntu 11.04. Switching to wicd seems to fix the problem, so it must be an issue specific to network manager. After I restart network manager (/etc/init.d/network-manager restart) it seems to work briefly (a few seconds). Just long enough to connect to the network. Then it disconnects again and the syslog starts filling up again. Amazing that this bug has been around so long! Good thing there's wicd....
I'm seeing this as well, in ubuntu 11.04. Switching to wicd seems to fix the problem, so it must be an issue specific to network manager. After I restart network manager (/etc/init. d/network- manager restart) it seems to work briefly (a few seconds). Just long enough to connect to the network. Then it disconnects again and the syslog starts filling up again. Amazing that this bug has been around so long! Good thing there's wicd....