Disconnection Issues on Roku Express
I installed two Roku devices about ten days ago. One unit works fine, the other keeps disconnecting. The Roku letters jump and maybe will go to the home page or just go back to the jumping Roku letters. I have unplugged the unit, I have restarted my modem. I have disconnected all devices in my network and still have the disconnection issue. It’s extremely annoying to have to restart the device multiple times throughout the evening. Please do an update on these devices as I have read all the community complaints, all 19 pages of this issue, and it seems that the developers don’t care about their consumers.
See if the issue may be a power supply issue.
Try plugging the problem device into the wall oulet if you are currently using TV USB port for power. (try using a cell phone charging wall adapter 5 volt, 1 amp).
Also, try taking the problem device to the other location where your other device is working and plug that into the TV USB port. (again, if you are using it to supply power).
If it works there, then I would suspect that the second TV cannot provide enough power to reliably run the "problem" Roku device and you will need to use wall power if that is the culprit.