The best way to do it is to log into your Netflix account, go to "Contact Us" (1-866-716-0414) and they may be able to assist you in setting up the machine. You might try to reset the player itself by holding down the FF button for 15 seconds (varies by model) and that should reset the settings as well.
Keep me posted.
I bought an "open box" BD-P3600 - it had been used and then returned to the store. Whoever bought it originally activated Pandora and Netflix before returning it - the first time I ran Pandora and Netflix I was not prompted to activate the accounts. How do I make the unit forget the original owner's account information so that I can link it to my own accounts?