Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
Sometimes a channel just experiences a problem now and then. Just go back to it later and it works. Issue is normally on the channel provider's end I have found.
Maybe doing a System Restart on your Roku will fix problem (probably not, but sometimes.)
You can always remove the channel and reinstall channel/check for updates.
Highlight the channel.....Press * button on remote....check for updates first, if good then repeat procedure and select REMOVE CHANNEL......Do a System Restart
Then reinstall the channel.
Hope that helps.
FYI....my Fox News is working currently, but I do experience some probs with this channel failing to open at times. It usually will start working when i come back to it at a later time, other times I just reinstall it. Can't really tell you definitively what this happens. I also get it with NewsMax a lot. But have never had to reinstall Newsmax, just come back to it later and it works. Just gremins in the apps sometimes.