Have you talked to Winegard? 800-788-4417. Usually very helpful, but they don't know a lot about Dish setups.
One of the problems with different vendors for a single system--Dish surely doesn't know Wingard SK-1000 operations, but Winegard does know some ideas about Dish...
Forgot if you have the H3 and DPH42 switch? If so, is the power to the switch plugged in a live outlet?
Hope I don't sound too pushy, but these expensive setups can be frustrating at times.
2016 Tiffin 40QBH
2005 36TK3--retired, but it was a good one
2017 F450 KR