Ran into a weird problem that all started when I changed the PSK a WLAN uses. The SSID of the WLAN stayed the same, only the PSK changed. Since changing the PSK, even though we went through and updated the password on the wireless devices connecting to the WLAN that changed, they all initially connected fine. But soon we noticed randomly, devices were disconnecting from the network. Watching logs on the controller it shows the clients are getting added to the exclusion list due to the wrong PSK. Eventually all those same devices time out of the exclusion list, then connect fine without issue. Some time passes and they get added to the exclusion list again. I can't figure out if the problem is due to an issue with the wireless APs/controller or the clients themselves. All i can say though is this is happening to multiple types of clients (computers, phones, smart devices (plugs, Alexa, etc.)) so there isn't any commonality there. Thinking it was a bug with the IOS, i upgraded the firmware but the problem persisted. Tried wiping the entire config of the APs/controller and added back the PSK with the new config but the problem remained. So now I'm out of ideas and want to instead figure out how to just disable the client exclusion feature hoping that keeps devices connected. I understand the security ramifications of this, but for now am running out of options. Any and all responses on either what might be causing clients to get added to the exclusion list or how to disable it all together are much appreciated!
I am running two C9130AXI-B access points which are configured as an embedded wireless controller. Firmware version Cisco IOS XE Software, Version 17.09.02.
