I can access the linking screen only from the Hopper's Whole Home Distribution tile. There is no Whole Home Distribution tile at the Joey location. Even from the Hopper screen, pressing select does nothing. You'd think it would change from the red 'unlinked' to a green 'linked'. I'll try some of the other workarounds some of the other guys have listed so far. I'm not impressed with the setup so far. Physical setup is easy. All the waiting, resetting, powering up and down, after everything is set in its place has got to get better. I'm so disappointed how Dish could take such a great idea as the Hopper and drop the ball in the way they have so far. I hope it doesn't turn into on of those 'telephone' type gadgets that does 10,000 different functions, but doesn't function well in its primary purpose.
From my Joeys: Menu - Network Setup - Whole-Home.