MyCloud Access

I am looking to get the new Google wifi 3-pack mesh routers. Problem I have is it has to be placed behind a FiOS router. Google wifi does not permit bridge mode in mesh configuration so its locked at 192.168.86.x for the local network.

Currently I have MyCloud sitting on the primary FiOS network and uPnP is properly setup within the FiOS router and remote access works just fine. I have it set to a static IP within the 192.168.1.x network.

My question is when I switch the MyCloud from the 192.168.1 LAN to the Google wifi of 192.168.86.x what must I do to have it recognize the new connection? I assume Google wifi will do a uPnP and if not I can add port forwarding.

Have you read any information provided by Google as how to connect your devices. Your have connected your My Cloud to a port by cable?