@psypher, just check with my IT department, we are using Aruba APs.
I think I have found the issue that causes the problem after comparing the success and failure logs.
[ 29.704853] wlan0: Wrong control channel in association response: configured center-freq: 5180 hti-cfreq: 5805 hti->control_chan: 161 band: 1. Disabling HT.
I think the change from John should fix this issue eventually, but it requires a lot of patches to merge to http://kernel.ubuntu.com/git?p=kamal/ubuntu-precise.git;a=shortlog;h=refs/heads/dellxps tree.
So I just simply disable that checking and it works for me, attached the change.
@psypher, just check with my IT department, we are using Aruba APs.
I think I have found the issue that causes the problem after comparing the success and failure logs.
[ 29.704853] wlan0: Wrong control channel in association response: configured center-freq: 5180 hti-cfreq: 5805 hti->control_chan: 161 band: 1. Disabling HT.
I think the change from John should fix this issue eventually, but it requires a lot of patches to merge to http:// kernel. ubuntu. com/git? p=kamal/ ubuntu- precise. git;a=shortlog; h=refs/ heads/dellxps tree.
So I just simply disable that checking and it works for me, attached the change.