My Dish vip211z receiver worked fine off my old modified sine wave 400w inverter. Today at campsite, I tried to set it up using my new 2000w pure sine wave Renogy inverter. It keeps displaying after switch search “No satellites found” but I hear the rooftop auto dish searching. I switched over from an inverter only plug to shoreline generator and tried it and it works fine. What the heck my little 400w inverter allows my receiver to find the satellites and the expensive 2000w pure sine wave inverter doesn’t?? I guess I will call Renogy or Dish? Any ideas?