this was weird....

Got a 2nd wireless 4K box,(Xi6) I also have a wired 4K box that acts as my DVR.

Unlike the other boxes I ever had, I could not get the remote (any remote, I tried like 5 different ones) to pair with this box, but somehow it was sending the 3-digit codes to all the other boxes in the house.

I happened upon a solution by trial and error, I previously had used ethernet connection on my initial wireless box to make sure i had the best possible signal strength, when I removed the ethernet cable from this latest box everything worked beautifully, and the wi-fi connection is strong.

Just weird that having an ethernet connection would prevent remote pairing.

wild guess is that perhaps only ONE Xi6 box can be on the Ethernet and all others have to be wireless.

Rather than asking me to DM an xfinity expert, I would like any discussion to be here in the forum so the rest of community can benefit, - so please don't copy/paste a request for me to DM

Thank  you