I have a job with a number of standalone TVs with nothing but a Roku Ultra connected.
Frequently, multiple TVs will not sync with the Roku players upon power up and the Roku indicates an HDCP2.2 error. Rebooting the Rokus resolves this. These seems to happen more when a new app is brought online.
All devices are 2022 models. Any insight as to why this would be happening and what the resolution may be (hopefully not EDID read/writer).
I've been having that issue with Roku units for years and it doesn't matter what configuration (TV only, AVR, etc.). I've never looked too deeply into a fix as it is infrequent enough that a reboot takes care of it.
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Just had same issue with fire stick. Changed res to 1080p. So far so good. Usually my problems are with rokus and streamers through a receiver they always have issues with this particular fire stick was in denon receiver
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