lost sonos play!

I have the Sonos play. It has been sat high up on a shelf for years and I have recently come to use it and despite my best attempts, nothing. Can be found! I have always had a wired connection and have followed the app instructions to the letter at least 15 times and still nothing! The light has gone from orange and flashing to solid orange then flashing white and now solid white and yet still undiscovered! Any advice that I haven’t tried yet? Thanks in advance