Wireless N band

How to enable the wireless N band in netrunner 13.06 ,

You mean 5 Ghz ? Because wireless N should be supported without a problem.

No I mean 2.4 Ghz as 5 Ghz is not allowed in my country or not used widely ,

I mean that my atheros wireless AR9285 card on linux in general that uses ath9k driver connects to my N band router using the b/g band on contrary to in windows which support the N band ,

My request is how to connect my devise to my Wireless N band router on linux (netrunner 13.06) ,

Hmm… normally the driver chooses which is supported the best and connects with it. If it connects with b/g try turning off b/g support on your router and it should connect with n.