Ubuntu
linux package

  1. Bug #762007
  2. Comment #2

Comment 2 for bug 762007

Revision history for this message
I Kovalev (iakovalev) wrote : Re: iwlagn: Received BA when not expected

I would like to confirm the issue is present in Ubuntu 11.04 amd64 (Linux kernel 2.6.38-8) with Intel Link 6250 WiFi/WiMAX card and the latest version of microcode from Intel. In my case both kern.log and syslog are flooded with "Received BA when not expected" messages.

The issue is most likely within the microcode for some Intel WiFi cards supporting 802.11n since it had been reported in other Linux distributions as well, for example over there:
https://bugzilla.redhat.com/show_bug.cgi?id=646082
The proposed workaround was to modify iwlwifi options in /etc/modprobe.d/iwlwifi.conf

echo "options iwlagn 11n_disable50=1 11n_disable=1" >>
/etc/modprobe.d/iwlwifi.conf