Ring Video Doorbell 4 connect to Unifi

I have a client that has a Ring Video Doorbell 4 and Unifi Access. The doorbell was working for a while, then started connecting and disconnecting and then went offline completely. I have benched and tested it, it works with a mobile hot spot and my default LAN here at my location but it doesn’t work on my bench network. At the client’s site it won’t work on any of the networks. I have tried turning on and off various features in the APs including Minimal data rate but nothing seem to work. The strange thing is that the device is shown by the Unifi device list as connected but it doesn’t pull an IP address except on my default LAN. It seems to me there is a compatibility issue of some kind but I have no idea as to what the issue is. Any help is appreciated.