I opened a terminal running "tail -f /var/log/kern.log" while switching to 11Mbps speed. I received the following message before going into system freeze (there were also a few messages after this but this was the first one, I could not record all of them):
[5969.661000] iwlwifi 0000:0c:00.0: Invalid tbl->lq_type 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1035889 Title: iwlwifi causes total system freeze on certain WiFi speeds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1035889/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
