Hi Kariza, Danny & Roku Team,
I’m experiencing the same issues as many others on this forum.
I have many Roku Ultra’s in my home, it my guest room Ultra has stopped working. I’ve tried everything suggested above and in other links and get no response from the unit, just black screen (no signal being sent). The unit also does not show up on my device list within the app.
My account email is [personal information]
Roku Serial #: S02A209MH7LV
i would appreciate any help you can provide.