Hello,
We are running into an issue on our Guest network when clients go idle for 5 minutes the client will issue a DHCP release and will try to acquire another IP address. The client is getting a new IP address every time and now we are seeing duplicate IP address messages on the logs on the anchor WLC. Some clients aren't able to join again until they reboot their device or we reboot the AP. See attachments with the show network summary and show wlan output