I am having the same issue. Have tried 3 HDMI cables and all 3 HDMI ports on the TV. Have reset the device. It works fine for 10-20 minutes (always varies), then it will go to blue screen "no signal" every few minutes. The audio also cuts out briefly. Very frustrated that there is no way to call ROKU for support.
I'm having the same issue it said I had to restart it and I unplugged it and I plugged it back in I turn on my TV it's still blue screen no signal please get back to us asap PS you guys need to have a number to call
I am having the same issue. I have a new Roku and have tried all of my HDMI ports. I simply have a blue screen that says no signal so there is no way I can get the access code for my Roku. Can you please provide a fix as nothing that you have shared so far is working.