Hi @Mikebavaro!
If this happened while you were listening to Pandora on your Yamaha, then you would have had to sign into your Pandora account on your Yamaha receiver at some point. Though, taking a closer look at the Pandora account associated with your community profile, I only see an iPhone and Android TV attached. The iPhone being added recently, before that the Android TV was from 2017.
Is it possible you have another Pandora account under a different email address?
In the meantime, some users have found success by rebooting their modem and router.
Shut down your Yamaha completely;
Unplug your modem and router, wait 10 minutes, and then plug them back in;
Wait five more minutes to allow the modem and router to fully boot back up;
Turn your Yamaha back on and try Pandora again.
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