Comment 25 for bug 75358

Same problem here. Can't create ad-hoc networks. With Intrepid, both balls get green, but then it says 'disconnected'.
Syslog output:
Oct 19 14:23:43 xlaptopx NetworkManager: <WARN> nm_device_activate_stage5_ip_config_commit(): Activation (wlan0) Stage 5 of 5 (IP Configure Commit) start sharing failed.
Oct 19 14:23:43 xlaptopx NetworkManager: <info> (wlan0): device state change: 7 -> 9
Oct 19 14:23:43 xlaptopx NetworkManager: <info> Activation (wlan0) failed for access point (xlapt)
Oct 19 14:23:43 xlaptopx NetworkManager: <info> Marking connection 'xlapt' invalid.
Oct 19 14:23:43 xlaptopx NetworkManager: <info> Activation (wlan0) failed.
Oct 19 14:23:43 xlaptopx NetworkManager: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) complete.
Oct 19 14:23:43 xlaptopx NetworkManager: <info> (wlan0): device state change: 9 -> 3
Oct 19 14:23:43 xlaptopx NetworkManager: <info> (wlan0): deactivating device (reason: 0).
Oct 19 14:23:43 xlaptopx kernel: [ 7031.834797] wlan0: disassociating by local choice (reason=3)
Oct 19 14:23:43 xlaptopx NetworkManager: <WARN> nm_device_wifi_set_ssid(): error setting SSID to '(null)' for device wlan0: Invalid argument
Oct 19 14:23:43 xlaptopx avahi-daemon[5162]: Withdrawing address record for 10.42.46.1 on wlan0.
Oct 19 14:23:43 xlaptopx avahi-daemon[5162]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 10.42.46.1.
Oct 19 14:23:43 xlaptopx avahi-daemon[5162]: Interface wlan0.IPv4 no longer relevant for mDNS.
Oct 19 14:23:43 xlaptopx NetworkManager: <WARN> nm_device_wifi_set_mode(): error setting card wlan0 to mode 2: Device or resource busy