Comment 10 for bug 991713

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Garry (s61kiwi) wrote : Re: [8086:4232] Wireless not connecting in 12.04 Intel Wifi Link 5100

I have the same bug. Wireless would not connect to 802.11N after upgrade to 12.04.

WORKAROUND: I had to disable N mode with

options iwlwifi 11n_disable=1

in /etc/modprobe.d/disable11n.conf

I did a new install of 12.04 and it seemed to have fixed the problem, however after a couple of days the issue returned and I had to revert to the workaround.

Chili555 over at Ubuntu Forums seems to be the go to guy on this issue.