sharkettesuz72 there's nothing in the Roku OS that is causing this. Something in the Hulu app/channel is identifying your local area incorrectly. The first place to look is within the settings on the app on your Roku device. Since you get the correct channels on a computer, any settings in your main account apparently are not being used by the app on your Roku.
Hulu (Disney) is responsible for the way their channel/app works on a Roku device. You might need to contact their support line to see if there's something hidden within the app or if it's something they can change at the server end.