Long range wireless about 500 feet
I have a phone line to my office from my house , need internet at office , don't want to pay for extra phone line cause router not strong enough , need a router 400 to 500 ft, that will work
The only way you are going to get that distance is with outdoor equipment with directional antenna on each end. There are lots of products on the market below is one link. You must have clear line of sight between the location. This company sells lots of things like this, this one just happens to be fairly cheap and works ok at short distances like you have.