if you want cheap solution then this one is ok TL-WA5210G
and if you want to make your network more reliable you can use
UBNT Devices, like Bulit is good device. or can use Power Station also very good device.
actually in wireless is Line of Site is very important.
[WTA] Long Range Wifi, #Point-to-Point #Distance 1.7km
May 3 2013, 04:33 PM
Quote
0.0156sec
1.56
7 queries
GZIP Disabled