@Alex_UTS I think it is just notification from controller that an IP is released for a device. If you want to turn it off, maybe you can go to your site setting >> section Logs >> Device >> uncheck...

@Hank21 hi, An update for this case, today I upgraded my controller to the latest version, 5.11.10 - 1.25.2 Build 20230704 Rel.64541. But the issue is still there. But I found 1 interesting thing....

@Krystianen do you really need 6Ghz? because for now, that band is still not in used by most of the devices. You can try to uncheck 6Ghz and you can choose wp2

@Krystianen same issue here, but you may want to try to fix the encryption of the SSID to wpa2 psk instead of wpa2/wpa3 to see if it can help to fox this issue.

@YuukiA already updated and no problem for nơ. But anyone can see the speedtest function after upgrading? it was there in the old version but disappeared now

@Retzel hi I think a RMA is needed for your case. Try to replace it with a new one and let see