Remote control - DirecTV

I'm currently overseas. I'm trying to watch Tv remotely. I get to the point where the screen directs you to push the OK button on the remote to activate the system. When I do that the remote does not activate anything. I"ve tried to turn the system on using the power option on the remote to no avail. Any suggentions please.!!!

This question, "Remote control," is about DirecTV channels, programming, equipment, and sports.