Community Forum
My cable service stop letting me change channels. Then it went to a purple screen with a code RDK03004
adding.... it might just be an amp that is powered by a brick in one of your rooms connected to a coax cable. sometimes they get knocked unplugged or they get unplugged by someone wondering what the power brick powers up. If you have an amp/powered splitter, there should be a lighted LED on it showing power is there.