I had the same problem with my King tailgater/211z. It was not until I signed up with DISH that the download would complete. The instructions to download then call DISH did not work for me. Once I called I got a DISH rep that did not know what an RV was (another story).
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Robin, Carolyn and Maggie the Schnauzer - 2015 Winnebago Vista 30T, 2014 Smart Car Toad
Robin, Carolyn and Maggie the Schnauzer - 2015 Winnebago 30T, towing 2002 Jeep TJ