Happens to me too, but I don't need a hyphen (-) in the network name - happens with any name I come up with. The tooltip also says it's joining the (null) network.
I'm on fully updated Hardy, trying to create an ad-hoc network for my iPhone to connect to. My syslog output is identical to what peitschie posts, and ends in: kernel: [ 4435.559939] wlan0: authentication with AP 00:00:00:00:00:00 timed out -- cant create a wireless network with a '-' in the name https://bugs.launchpad.net/bugs/158548 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
