Looks like you've got an Atheros AR5001 WLAN card, and the ath5k driver is having issues.
Your kernel log is full of the following error messages for *all* channels: Feb 22 10:02:01 snowdog kernel: [ 824.761738] ath5k phy0: gain calibration timeout (2437MHz) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/710711 Title: NetworkManager crashed with SIGABRT in raise() -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
