Just started for me this morning also. Chat did "troubleshooting and assured me that I would be contacted within 24-48 hours with resolution. Doesn't sound too good looking at the previous comments. Im on a Dell with windows 10 tried IE , Chrome, Firefox and Edge I get the error from AVG that says the https://xtvapi.cloudtv.comcast.net/ has been blocked because the server was not certified.
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