I just bought the Roku expressed. I hooked it up and had no problem streaming anything. Since that first time, every time I turn it on the bouncing Roku logo appears, it switches to the channel menu, and I’ll pick a channel, such as Netflix. It logs into my netflix, and as soon as the Netflix menu screen pops up, the bouncing Roku log comes back and starts over. This happens for any channel I try to get into. I have tried a reboot. What is the issue?