I recently switch from Comcast to RCN and maybe it is a coincidence, but the Netflix channel was giving me issues on my Roku 3. I started by removing the Netflix channel and trying to re-add it. However, it would not let me re-add the channel after I removed it. I then realized it was not letting me add any new channels. I thought it may have been a space issue so I removed some channels with no luck. I then tried a factory reset. Post the reset I no longer see any channels on the home screen. I then choose check for updates and it "says" it is updating all my channels, but again I see nothing. I then went to the secret screen and tried cycling channel store but had no luck there. I then tried update software from that screen, but it always fails with only a low % complete. I appreciate any help or just someone to tell me if they think my Roku 3 is just fried. It seems very odd as it was working fine outside of Netflix up until I did the factory reset.
My serial number is:4E6545069355
Let me know any additional details you need. I have also tried removing power for an extended amount of time without any success.