Did your problem get resolved? I have been having this issue all of a sudden as well beginning about 2 weeks ago. It is affecting channels 5, 6 and 8 heavily all times of the day. Severe pixelation and that 3.1.1.1. error code. I have never had this issue before. Funny, how Cox was recently out in the area supposedly improving the service about a month ago. I can't even watch any shows I like to watch. Cox sent a new box today and there is no improvement. I've read of other people who have had this issue and they had no resolution after spending a lot of money replacing outside cables and switching out devices. It doesn't make sense. Never had this type of issue with cable before.