We had a similar issue with Aruba 6.2.1.1 - The difference was that the user could connect to the eduroam SSID with no issues. The only difference was that band steering was not enabled on the eduroam SSID. I had the user follow the instructions on the web page listed below to disable the 802.11n as it seems to be a driver issue with the high data rates.
sudo modprobe -r iwlwifi sudo modprobe iwlwifi 11n_disable=1 This is where I found the info to pass along to the user. http://ubuntuforums.org/showthread.php?t=2030227 > -----Original Message----- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv > [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Aaron Smith > Sent: Wednesday, September 04, 2013 2:38 PM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Anyone seeing problems with Ubuntu 12.04 > using WPA2 protected networks? > > Hello folks, > > I am wondering if anyone else is seeing a problem with laptops running > Ubuntu 12.04, Precise Pangolin, getting connected to WPA2 protected > networks? I have reports of four students with this version of Linux not > getting connected to our WPA2 Enterprise (802.1x) or the WPA2 > Personal/preshared key wireless networks but they can connect to the open > mac auth'd guest network. I found several threads discussing problems with > wireless on 12.04. This page seems to summarize them: > http://www.linuxplained.com/how-to-fix-wireless-problems-in-ubuntu- > 1204-precise-pangolin/ > No word yet on if they have fixed any of our students problems. > > Here is what happens for the one client seen in person. It is an Acer Aspire > 5750G with an Atheros AR5B97 Wireless Network Adapter. The client can > connect to the network, get authenticated and get an IP address. If we > immediately start a ping to the gateway, we see it work for 30-45 seconds > then it stops. If we open a web page during that period it will sometimes > open if we are quick. From controllers side everything looks fine. No black > list or receive errors from the AP. Other clients are not effected in any > way. > When the client boots into Windows partition there are no problems using > the WPA2 Enterprise 802.1x network. > > Our wireless controllers are running ArubaOS 6.2.1.2. I have a ticket open > with Aruba Support and am waiting to hear back after sending some logs and > debugging earlier today. I wanted to reach out the this community to see if > anyone else has seen this problem and maybe even found a solution. > > Thanks, > Aaron Smith > Network Engineer > Swarthmore College > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/.
