When you go to Settings > System > About, does the email address that's tied to your Roku account show up?
If that doesn't resolve it, go to https://my.roku.com and unlink the device. Then restart the device, linking it like you did when it was new.
Just to be clear, you aren't using a VPN, are you?
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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