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Did you try port 1?Different hdmi cord? Is the flex box getting power?
I am a Retired Official Comcast Employee
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adding... modern HDMI ports/cables really 'get' a tight connection. make sure you pull the connection out and plug it in hard until it clicks. be sure the set top box 'out to tv' HDMI port is the one you conect to on the set top box.
I am not a Comcast Employee.
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I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
