I ack the roaming by Seth. We have multiple 802.11n APs with the same
SSID here that are WPA2 encrypted but on different channels.  Those
affected go into a roam loop.  When they connect to a non-WPA2 single
SSID AP they have no problem.  I've seen this on three different Intel
setups across multiple brands (so it's not "just a thinkpad thing").

It's also worth nothing that it is happening on several non-US laptops
as well.  We do have APs in use on channel 1, 6, and 11. To test Andy's
theory we moved the 11s to 10.  However the hotel's wireless has APs up
to 13.   The APs for reference are a mix of enGenius and Ruckus. In one
test area I removed the enGenius and it actually caused more laptops to
go into the roaming loop because there more APs of roughly the same
signal strenth (as measured via wpa_gui) to choose from.

I didn't save the wireshark capture but if you'd like to see that I'll
do another one tomorrow if we have any affected.

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https://bugs.launchpad.net/bugs/1005832

Title:
  Intel wifi frequent disconnects

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