cisco mobilty issue

[Michele Toblini]

Hi,

I got an issue between one of my branches where the mobility tunnel goes down suddenly. 

The release is 8.2.166.0 and the workaround is delete the ssid and create it again. 

I noticed that when this happen the mping doesn't work. Maybe a bug?

[patoberli]

Does the normal ping work if the mping doesn't? Maybe there are short outages or network overloads causing this?
Then there was also this bug: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCva66176 fixed in 8.2.170.0.

[Michele Toblini]

the ping works find when the mping doesn't. I read the bug but i don't understand what "AP drop of from Network due to large set of Mobility groups in down/down" means. 

I got just 2 mobility tunnel over my 2 hub wlcs..

[patoberli]

What they probably mean in the bug description, the APs will be dropped from the network if that bug happens in some variations. So I would upgrade in any case.

[Haydn Andrews]

Sounds like a bug.

The TAC recommended build is for the 8.2.x train is 8.2.170.0

https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html

Suggest upgrading to one of the recommended releases