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Professional Discussions => Wireless => Topic started by: deanwebb on March 26, 2015, 09:18:48 AM

Title: 5500 and 2700 Cisco gear dropping connections?
Post by: deanwebb on March 26, 2015, 09:18:48 AM
Anyone else here seeing Cisco 5500 WLCs and 2700 APs having odd issues dropping user connections? It's a rather frequent problem here.
Title: Re: 5500 and 2700 Cisco gear dropping connections?
Post by: SimonV on March 26, 2015, 09:32:49 AM
Are you using TKIP encryption and Intel NICs by chance? I have had an issue for months where Intel cards would send a malformed TKIP packet because of which the AP dropped all traffic for 60 seconds. Motorola was worse, they halted the entire SSID for 60 seconds  :dance:

Google 'TKIP countermeasures' for that exact issue, the resolution was to update the driver which is always a good idea
Title: Re: 5500 and 2700 Cisco gear dropping connections?
Post by: deanwebb on March 26, 2015, 09:51:31 AM
Thanks, Simon. That's what I thought it could be: client driver issue. We'll test that out.
Title: Re: 5500 and 2700 Cisco gear dropping connections?
Post by: Otanx on March 26, 2015, 06:24:49 PM
It is always the client.

-Otanx