Well unfortunately I do not have anything in my Roku premier Plus that has the word power on it I can go into my settings I can go into system but I have nothing beyond that that has anything to do with my power so it doesn't look like I can fix this I appreciate all the help
This is no longer true after the 10.5 update, which is my reason for posting here and trying to help with the identical issue I personally had, which is described in this thread. In this house, there are three Roku boxes: two 3941RW (Express 4K+), and one 4200X (Roku 3). One of the 3941RWs got the 10.5 update, after which under SETTINGS///SYSTEM/// there is now "Power" in the list. It's located under "System Update" and above "Guest Mode". I just checked the other Rokus that are still running 10.0.xx and "Power" is NOT there. Under the new "Power" tab in 10.5 is a check box for "After 20 Minutes of No Activity". This defaults to UNCHECKED after the 10.5 update, and is the reason my power light kept coming on. Once I checked this box, the Roku behaved as it did before, going into screensaver followed by standby. I wouldn't have posted these results here had I not found them helpful.