Mobile App Betting Fails in Border towns

Mobile App Betting Fails in Border towns Have to give a big fat F- to the sports book apps as far as betting from sports books in the border towns. Have tried in S Lake Tahoe, Mesquite and Laughlin and failed miserably each time trying to make a bet. Reason cited is I'm too close to the border. In Mesquite I tried the Southpoint app from the Southpoint run book at Casablanca and told I was not in the authorized area. In Laughlin I tried all over town with the Will Hill app including right from a Will Hill book and was locked out. In S Lake Tahoe tried from Harrahs and Harveys to no avail. Apparently the triangulation used by the location program uses three towers and often one or more are on the other side of the border. You'd think as long as one were IN Nevada that it would be enough. Having one outside NV will get you blocked out though and that effectively eliminates all the border towns. Guessing Primm and Wendover would be the same.
The solution for when interstate differences in the law is often to federalize it, although I can't imagine app-based gaming to suddenly become legal nationwide. I don't know whether adding towers to the border cities would be a good solution, from a technology standpoint. In June I was having trouble using the online poker site Ultimate Poker for the same reason. Looking forward to testing it again this spring.