I assume that you created your USTVnow account using an email address. If you have a free account and you are absolutely sure that you have the credentials entered correctly then you may be having the issue where the auth token will not allow you to stream. There are tons of posts regarding this issue. The only known work around is to create a new free account.Hi!
I'm still unable to use the USTVNow addon on my ATV4. I'm running Kodi 17.1 and the latest version of the addon. I can configure the addon with my free credentials of USTVNow. I already tried deleting and reinstalling Kodi and the addon. Can you help me?
If you can see the list of channels under the Live TV section but they will not stream this is most likely to be your issue.