I had to return a faulty Deco M5 unit and install another unit as the main unit. Since then it has not been possible to connect to the Guest network. I have reset the password / renamed the guest netw

Sorry if this has been asked before but I can't set up my Sonos speakers to my Deco M5 network. I have followed the instructions, connecting Deco to Sonos with an ethernet cable etc. It repeatedly say