I had the same problem not getting into Ondemand and having those error codes. Comcast sent a reset signal to my boxes that did not work.Then they wanted me to swap out my boxes but how can two boxes fail at the same time... It had to be something else that is common. I went to the junction box outside where the Mai. Cable came in I clean out the inside as it was very bug infested and tighten all the cable. That fixed my problem. No more error code and ondemand works now.
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