 
 
presuming your router and PC are using the same 11n fixed settings and are locked to that so as not to allow 11g,11b connections that should be enough.
 
however if not, then by far the simplest is to get yourself some replacement 3rd party direction arials for both the 11n router and the other PC s that are using that 11n and point them at each other.
 
that way being directional means you wont pick up the other peoples routers or they yours so easly and get far better and clearer long range thoughput to boot.
 
http://www.cableforum.co.uk/board/87...l#post34259377
 
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