streaming limit reached message

Got this message in a popup, & no movie:

Streaming Limit Reached

You are currently playing videos from apple tv+ on too many devices. To continue, stop watching on one device.

Playing this on tv.apple.com in the chrome browser on windows 10.

I have 2 other apple products - one is an ipad that is currently powered off.

Nothing is playing on the other, an iphone.

Rebooting the windows host didn't affect this problem.

There are a few old ipods in the itunes associated devices - they're powered off somewhere but

I removed them anyway. No change.

How can this be fixed?