I have had Dish TV for some time now and I have to admit up front I don't know anything about the newer "Wally" equipment - wish I did.
However, my receiver is an older VIP-722K that supports two hardwired connections as well as an Ethernet connection. To that I added a Sling device - both the Sling device and the VIP-722K are no longer being offered by Dish but can be found used on Amazon and eBay. With my setup I can access all my Dish and local OTA channels in my RV on the road using a Firestick and DishAnywhere as long as I have Internet access in my RV. For that I have a grandfathered AT&T Mobley with unlimited data (for $20/mo).
My setup works great at home and on the road.