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blck screen -loss of signal

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New Poster

blck screen -loss of signal

screen goes black for 1-2 seconds about 5-10 times during the hour even when watching on demand

New Poster

Re: blck screen -loss of signal

having same problem today (April 10 - 10:30-11:30 a.m.) in Edmonds  -

Is affecting the Television signal as well as internet

New Poster

Re: blck screen -loss of signal

Having same issue with loss of signal. TV go black for 10 to 15 seconds each time. Happens approx 10 times an hour. This has been going on now for the last week (April 3 thru April 10) and seems to be increasing in occurances. This affects my internet connection as well.   Getting very frustrating. 

Also have been getting on a DAILY basis the , WEEKLY Emergency Service intreruption. I understand the need for this but on a DAILY basis?? Why. 

Frequent Visitor

Re: blck screen -loss of signal

Same problem. Does not affect internet, but using the internet seems to affect the TV, but not sure.

I know the TV does go in and out on many channels, not all, even without using the internet.

The sound skips and the picture pixelates and becomes hard to watch.

Official Employee

Re: blck screen -loss of signal

All - 

Apologies for the issue that you described above. 


Pixelation and audio-video dropout issues are almost always related to local or individual signal or connection issues. The issue can occur on a single channel or multiple channels due to the frequency or frequency range that the channel is delivered on. Changes in temperatures can also aggravate the issue.


Check to be sure that all of your cable connections are snug.


Box swaps, box refreshes and multiple box refreshes may not resolve this issue if there is an underlying local signal issue. 

Give us a call at 1-800-COMCAST and we can start the troubleshooting process and get this resolved. Insist on a technician visit so that the signal levels can be reviewed and adjusted if necessary. There is no charge if the issue is determined to be with our equipment or originating outside your home.


Thanks for your patience.


I am an Official Comcast Employee.
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