Gateway/router not discovering ethernet connected devices behind LAN bridge
I have just installed an Xfinity WiFi Gateway/Router and set up my home network. All my wireless and directly connected ethernet devices and those behind the first bridge were discovered and work well, but I have a second ethernet bridge in another room with several addional devices that aren't discoverable and don't see a live internet connection. I've tried power cycling everything and rebooting the Gateway. Nothing seems to work. Don't think this is a physical connectivity issue since this all worked well with my Cisco WiFi Gateway/Router that I replaced. The only thing I swapped out was the Gateway.
Has anyone seen and/or resolved this kind of issue? Guess I could just put the Xfinity box in bridge mode, but don't want to give up just yet.