One of my plugs was dropping the WiFi connection so I updated the firmware.  Continued to experience issues so I deleted the devices to readopt from the start.  Have not been able to determine what is preventing the adoption.  I tried disabling all the firewall rules, tried IoT WiFi and default WiFi, turned off limit WiFi tracking, restarted network gear.  Is there something with iOS 18 that prevents these plugs from adopting?  I purchased these plugs exactly one year ago today and haven't had issues until recently.