Hi @duzty,
Thanks for your first post in the Roku Community!
We understand that you are getting a "no signal" error message. We would like to know what went wrong so we can assist you further and fix the issue.
Is there a light showing on your device? For troubleshooting purposes, have you tried connecting those Roku devices to another TV to see if you are seeing the same issue with no signal?
We look forward to hearing from you and looking closely into this issue. Thank you!
Best regards,
Mary
Mary F.
Roku Community Moderator