I have changed my WiFi password and Apple TV 4 keep remembering old password and I went settings app and network and pick current network then forget this network and it just keep spinning spinning doing nothing. I tried pull power plug off and back in and still no different. I need Apple TV connect new WiFi password cos it my HomeKit hub for my lights. I can’t use automation or away from home until network sorted. I run out ideas what do next without reset whole Apple TV 4 cos it means reset HomeKit too!