App displays "Current program blocked. Check Whole-Home settings."
This message can come up if your Whole-Home settings are allowing external devices (i.e. your phone or tablet) to have basic access to the receiver but the "Current Program" option is set to blocked.
See the troubleshooting FAQ (step 6) for more information on how to confirm or change this setting on your DirecTV receiver. You want to be sure that all External Device options are set to Allow.