I have successfully used the Tether-X and Tether-X Pro app on my M8W when I had Windows Phone 8.x running on it and Windows 8.1 Pro running on my laptop; worked great! I can't for the life of me get it to work with Windows 10 Mobile TP builds regardless of which one and I'm running Windows 10 again regardless of what TP build running and when I originally upgraded to Windows 10 Pro from Windows 8.1 Pro. There are some subtle changes in how the commands are submitted in the command prompt for netsh but I've set it up a number of times and it just won't start. I admit I don't know much about proxies, but whether it's Tether-X or not, is there a way to manually set the whole thing up using a proxy. I'd hate to either give up my Straight Talk plan and return to Verizon Wireless or revert back to WP8.x. Thanks everybody! Happy Father's Day to all you dads and parents out there.