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Companion box XiD-C turns off during Welcome screen

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New Poster

Companion box XiD-C turns off during Welcome screen

Says "Welcome" starts changing resolutions then turns off. Television is only 1080i and seems like it tries to scan higher then the box is turning off. Was just told of this yesterday, has been this way for about a month as my daughter didn't tell me. I was thinking it may have happened with the 4k HDR update. Any ideas?
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Diamond Problem Solver

Re: Companion box XiD-C turns off during Welcome screen

There is no such thing as a 4K update as that box isn’t capable.. You may have to swap it.

I am a Retired Official Comcast Employee
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New Poster

Re: Companion box XiD-C turns off during Welcome screen

My main box DVR updated about a month ago and is running in 4k HDR at 2160p. Apparently this is when that one Companion box stopped working, the other two Companion boxes are working.
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New Poster

Re: Companion box XiD-C turns off during Welcome screen

I understand that the Companion boxes are not 4k, that's not what I was asking. It goes to the welcome screen and starts checking resolutions, light blinking green then shuts off as if it's losing sync when it tries to scan higher.
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Diamond Problem Solver

Re: Companion box XiD-C turns off during Welcome screen

I’d still swap it out

I am a Retired Official Comcast Employee
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark a post as the Best Answer!