Presumably you have not factory reset any of your Sonos products?
After wiring the Sonos Bridge to the router, try rebooting all your other Sonos devices. Ensure your Sonos controller is connected to the new WiFi signal and fully close and reopen the Sonos App and see if that works. If no joy then set aside the Bridge and cable one of your other Sonos products to the router instead and see if that resolves things for you - if things still aren’t working, try a ‘different’ network cable connection and try another Ethernet port on the router (just in case).
Hope you manage sort it and get things back up and running.