I see that this thread hasn't had any recent posts, but I only now have encountered a problem regarding this issue. My Roku 3 "hotspot" is on the same Wi-Fi channel as my router, and blocks Internet access. I've had the Roku for over a year, but this has only now become a problem. For the present I just unplug Roku when I'm not using it, but I wonder if anyone has a solution or explanation that might help. Thanks.