I would delete the hughes network listed in your wireless networks available list, and then refresh and see if your computer is even seeing the network you are trying to connect to. If not I would suggest spending some money on a antenna/range extender for your neighbor to connect to his router/access point. Even then this may not work, based on distance, obstacles, materials used in building(wood blocks less than brick), etc.
Also, look up info on setting up a point to point wireless network(basically would consist of a antenna on the outside of your house and one outside your neighbors.) I know that is how big corporations share their wireless between multiple buildings.
My neighbor has Hughes.net hi-speed satellite with a secure network and has given my college-age granddaughter permission/passwords to use his service for her summer classes. I have Windows 7, he is using either XP or Vista. I have an Alfa range-extender; it was working briefly for some near-by connections, but when I started messing with the Hughes network, everything disappeared. I set up his service in the network and sharing center; it shows, but I cannot connect. I've enabled my adapters, but don't know what else to do. Currently am using a Verizon usb connection to access this forum.
He has a desktop, I have a Toshiba laptop, model P305D-S8995E. I could really need some help in putting all of this together.