Hi @lizochkanovichenko !How did you solve (not solve) the problem?

Hi!No, I didn't rollback to old firmware. We have some wlc 9800 ( including cloud WLC) . I try to resolve this  problem by new IOS firmware (+ Service Pack)

Hello! I have jast tested new version IOS-XE 17.16.1(for cloud) on my testing cloud wlc 9880-CL and it works!!!)) All apple devices (iOS 18.x.x) are working correctly

I would like to point out that there are no problems with version 17.9.4a !!!! The apple devices iPhone 15 pro and above work correctly.

Hello,no, it doesn't work. The problem with apple devices remains.