Restarting/rebooting your router or set-top box will reset your device and often resolve ...
When I originally wrote our motorhome packing list of everything we had in Dave, our Hymer B544, on a rainy day back in 2012 I had no idea how useful it would still be some six years later.
Locate the "Power" button on the front of your dish receiver.
Dish guide not updating
Press and hold the "Power" button until the receiver shuts down.
Unplug the Dish Network power cord from the electrical outlet.
Wait 15 seconds, then plug the power cord back into the electrical outlet.
Press the "Power" button to turn on the device again. Press the "OK" button when you are prompted to update the Dish Network program guide.
Keep the receiver plugged into a phone line at all times.