I have a beam, sub and 2 one sl. They were working fine for almost 6 months. Yesterday I disconnected one One sl as a mistake. After plugging back in it didn’t add automatically to the home theater system.

I have been trying all day to add it and no luck. I have reset factory setting on all system and start from scratch. Still same issue. I can add to the system everything but when I add my surrounds it gives an error “there was a problem adding your surrounds” and only one of them starts working.

Any tips?