9 times out of 10 that's only fixed with a tech coming out to ur house. Its a bad signal getting to the box. Could b a bad cable line or splittler. Or could b bad signal from the tap where your signal starts. You need to call 1800 comcast and get someone to come find out where ur problem is and fix it.
I have an MCSA cert. I have been in the IT/internet area for over 9 years. I have had many experiences in the IT field and have been in many different areas of the field. I am no longer a Comcast employee and will gladly tell it like it is to anyone. If you are not happy with your service, there are many other providers out there.
Mr. Xfinity is correct. This is a signal issue and can only be resolved by a tech coming to your home. Please call 18002662278, follow the prompts for problems with your cable TV service and request a tech.
Commercial service and installation technician, been with the company 8 years doing technical troubleshooting and installations for residential and commercial accounts. Im a front line tech and get to see more information of problems than people sitting behind a desk using scripts to help you... Follow me i can help.