Here is the suggestion :
1. Launch the DisneyNow app and log in to your account using the correct credentials.
2. Follow the steps in order to get the activation code.
3. Go to disneynow.com/activate on the device that you want to log in (or the Activate TV option)
4. Enter the disney activation code on the box.
Click here to know more at: Disneynow com activate | Disneynow activate