I am seeing something similar with Intel(R) Centrino(R) Advanced-N 6230, the wireless connection drops, sometimes does not reconnect, sometimes it does.
I have disabled 11n per other posts and it seems to be helping, no disconnects since disabling.
$ more /etc/modprobe.d/iwlwifi.conf
options iwlwifi 11n_disable=1
This issue arose for me when I picked up the final two weeks worth of updates for 12.04.
I am seeing something similar with Intel(R) Centrino(R) Advanced-N 6230, the wireless connection drops, sometimes does not reconnect, sometimes it does. d/iwlwifi. conf
I have disabled 11n per other posts and it seems to be helping, no disconnects since disabling.
$ more /etc/modprobe.
options iwlwifi 11n_disable=1
This issue arose for me when I picked up the final two weeks worth of updates for 12.04.