Unable to activate new/additional TV boxes



I currently have internet and one TV and those services are working fine. I resently ordered and recieved a self installation kit to add two additional TVs. While attempting to install a new/additional TV box, I kept getting;

Sorry, we're having some trouble.

Please tighten your cable connection then resatart your TV box, which can often fix common issues.


I decided to try the TV connection that is currently working with the existing cable box and I get the same error. However, I switch the cables back to the existing (already activated) box and TV works fine. I'm attempting to convert from DirecTV to Xfinity for TV services but............

Any help would greatly be appreciated. Thanks

"Unable to activate new/additional TV boxes," is about XFinity-Comcast Television.

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