Connectivity issue

[Ahmed Tarek]

Dears,

i have WLC cisco 3504 with 2 AP, i latest upgrade IOS to 10.0.181 successfully, but my issue is for all iphones, all iphones must have connection loading in whatspp then back to work.

i mean it lost connection with WLC to tried to reconnecting again then back to work, pls see attached photo

[marce1000]

 - Use client debugging on the controller : https://www.cisco.com/c/en/us/support/docs/wireless/aironet-1200-series/100260-wlc-debug-client.html , you can have these debugs analyzed with  : https://cway.cisco.com/tools/WirelessDebugAnalyzer/ , also have a checkup of the 2504 controller configuration with : https://cway.cisco.com/tools/WirelessAnalyzer/

 M.

[Ahmed Tarek]

thanks Marce for your reply,

i will follow your guide and keep you updated

[Ahmed Tarek]

hi Marce,

unfortunately i feel a little confuse for follow the guide, i did get nothing , where is the error i mean.

[Scott Fella]

Ahmed, I'm assuming you had a typo and you upgraded to 8.10.181.0.  If this is causing you issues, why not downgrade back to your original code version?  You can always also try a different version.  One thing when you upgrade is that you should run a diff between your configuration before the upgrade and the configuration after you have done the upgrade.  There are always some changes that can happen that may or may not cause issues.  

[Ahmed Tarek]

thanks scott for your reply,

this issue already occurred in 2 previous IOS versions

8.10.171 and 8.10.131, the same issue

[Ahmed Tarek]

dears,

any update?