I tried to reproduce this over the weekend with no luck. What follows are notes from looking at the logs, for my own benefit.
You're on a network with multiple APs and seem to be roaming between them a lot. Just before you start experiencing problems network-manager says "disconnecting for new activation request," which afacit means that you manually told network-manager to reconnect (at least it's trying to connect to a different AP the same network). At that point the association proceeds until the 4-way handshake to establish the keys, which times out. Shortly thereafter iwlwifi starts emitting these errors: iwlwifi 0000:02:00.0: fail to flush all tx fifo queues After that the 4-way handshake fails a couple of times, with the AP sending a deauth frame with reason code 2 (previous authentication no longer valid). Then it looks like iwlwifi gets reloaded and things go back to normal. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1126495 Title: wifi disconnects randomly when using N connection To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1126495/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
