Hi @dcarbone! No problem!

I've gone ahead and remove your Yamaha receiver from your Pandora account. When this takes affect, you'll automatically be logged out. This may not happen immediately, so please be patient. 

If you continue to have trouble, I recommend power cycling your modem/router. 

1. Shut down your Yamaha completely;
2. Unplug your modem and router, wait 10 minutes, and then plug them back in;
3. Wait five more minutes to allow the modem and router to fully boot back up;
4. Turn your Yamaha back on and try Pandora again.