This issue started within minutes of me traded out my router 8 year old. I updated my new wi-fi passwords on three PCs than on #1 Roku TV and then Roku #2. At that second the cable box went to snow. You could see a picture, however far to ignoring to watch. It still comes in on Roku #1 perfectly. I have switched out the cables, however getting the same results Please, what did I do?