@Rich Rtoday we had an event with massive ap disjoin and i can see 5 cores with CPU above 90% the model that we have is the 9800-L-F just have one wncd and have the following process always hight is a BUG.24876 24554 413% 423% 431% R 351516 ucode_pkt...

@Rich Rwe have 159 AP's and more less 1100 users, we can see that the controller is healthy.

@Rich R  appreciate your information, in my case is different with the message come the ap´s disconnection and the only way to have the ap´s back joined is doing a redundancy force-switchover. and we are not able to take captures because customer dos...

@Rich RThanks for the information about this issue, for us is complicated because when we have the message refer to CSCwh89539 this generate massive ap disconnections we already use the config analyzer and basically follow all the best practices reco...

Hi Mohammed did you check this BUG https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwh89539do you fix this issue? i have the same issue with wlc 9800-L-F with differente IOS version like 17.9.3, 17.9.4, 17.9.4a, 17.9.5, 17.3.6 and is the same with al...