Does it work when you cable it to the LAN?

Check your router’s DHCP table to see if it is on the network at all.

Starting about a week ago, Im having the same issues

Ive tried Rebooting, restoring factory defaults and reinstalling.  It says it connects but never shows up in the APP

I have the device back online now.

It took a combination of the helpful replies: first I checked the router and it wasn’t there in the DHCP tables. I re-tried simply disconnecting and reconnecting, but with no result. The amp is just across the room from the router, so WiFi signal should not have been a problem.

I had put off connecting via ethernet cable as the amp is right at the top of a kitchen cupboard - necessary to connect to the ceiling speakers the last owner installed… the reason I bought the amp.

I shifted the amp to another room that has a tp-link switch and connected via a 16’ cable, albeit with no speakers. On powering on, I was invited to install the new device by the app, which I did successfully.

The problem then was - I had no sound, so I disconnected and moved it back to its original location, crossing fingers it would still work. It did.

So problem solved but I may buy a longer 20’ cable to drape through the house should it happen again, simply to reconnect it and save the faffing about disconnecting and lugging.

Thanks for your replies.

Mind you, I still don’t know why the system lost an amp that had worked successfully for five years.

I can only suggest trying to temporarily cable it to make the reconnection. Worked for me. Good luck!