There are two concrete-block houses separated by open space except for a small (4 x 3m) concrete shed blocking their direct view. The router in the main house is in the living room 1 m from the window with a WiFi laptop (XP) and cable connected desktop computer (XP).
Is it possible to run an ethernet cable from one router (in main house) to a 2nd router (different routers, brands unknown) in the shed and connect a WiFi extender to the 2nd router? Is there a WiFi extender that can cover 200/250 meters? (Items will be purchased in US, used in Asia; 240v.) Thanks!