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Self Install - Signal Issue?

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Frequent Visitor

Self Install - Signal Issue?

We switched over from DirecTV to Xfinity a few days ago and have internet and TV set up.  I have no issues with the internet connection and TV if only the main TV DVR box is set up.  However, if the second small TV box is connected I get dropped frames and pixelation on both TVs.  Just disconnecting the second box from the coax solves the issue.  It doesn't matter which room the boxes are connected to.  The external cable is split 1 to 4, (gateway, DVR, small box, and capped).  Tried resets and system restores.  Is this an issue with not enough signal entering the house or a bad small box?  The buried cable in the yard is over 20 years old.  They won't send a technician to check the buried cable since one TV is working because of COVID and high demand.

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Diamond Problem Solver

Re: Self Install - Signal Issue?

When you switched from direct tv, did you remove all direct tv equipment/splitters from the equation? Splitters especially aren’t compatible. It sounds like an interior issue not exterior

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Frequent Visitor

Re: Self Install - Signal Issue?

Yes.  Removed the powered SWiM and their 8 port splitter.  Replaced with a single 4 port splitter.  Cabling to wall outlets was unchanged, but I see the issue regardless of which wall outlets the boxes are plugged into.

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Diamond Problem Solver

Re: Self Install - Signal Issue?

It’s possible something is backfeeding and interfering, maybe the second box itself. Try unplugging the gateway with both boxes plugged in

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Frequent Visitor

Re: Self Install - Signal Issue?

No change with the gateway powered off.  Still get intermittent loss of picture.  Loss seems to be worse and more frequent on HD vs SD channels but also occurs with on-demand programming.

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Frequent Visitor

Re: Self Install - Signal Issue?

The issue turned out to be noise on the line going to the main box.  It wasn't able to feed a clear signal to the small box.  I ended up moving the main box to a clean line and installing a wireless receiver where the main box was previously located.

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Regular Contributor

Re: Self Install - Signal Issue?

Did they finally send a tech out, or did you have to figure this out yourself?

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Frequent Visitor

Re: Self Install - Signal Issue?

Figured it out by moving boxes around, but they did send out a tech to confirm and swap out the wired box for the wireless one.