I've also been running into this issue. More specifically, I'm running into the dmesg error "disassociating by local choice (reason=3)." Encryption doesn't seem to be the issue as I'm having problems connecting to open networks as well. I used a dirty workaround to get "connected."
My wireless is having very little problem authenticating and associating to APs, but it's not doing so well on receiving (or accepting) DHCP offers. So I set up a manual connection (static IP/subnet mask/default gateway/DNS servers) through network manager and lo and behold I connected and am now able to access the internet. I really have no idea what's causing the issue, whether it's network manager, the IWL3945 driver or what, but I am experiencing the same problems as described in this bug. I'd be happy to post any command outputs if needed. -- intel 3945ABG with driver iwl3945 [intrepid] doesn't connect https://bugs.launchpad.net/bugs/291685 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