I'm sorry about the issue. Do you mean when you try re-connecting the Roku to your Wi-Fi / wireless network name, it asks for a password?
What is the model of your Internet/wireless modem/router device?
Do you have a laptop/wireless computer that is currently able to connected via wireless? If so, does it have Windows xp, vista, or 7, 8, or Mac?
Please reply at the box below. Thank you.