The network manager is not responsive afer some time
I've noticed the following issue with my Ubuntu 12.04 installation. After some time while the laptop is working the network manager becomes not responsive at all. For example: I can see the available wireless networks, but I can't disconnect from the current SSID and connect to another SSID, or I can't connect using my USB 3G modem.
Loging out and than back loging into the session solve this. Any idea?
P.S. During all the time when I'm connected, I don't have issues with the connectivity.
Registered Linux User #534948