Laptop detects not all available wireless connections and at the same time on existing connection is very poor signal strength. I make this announce when I compared my and my friend laptop wireless connections, his laptop detects more than ten available connections (when my ASUS K55VD with "Atheros AR9485WB-EG Wireless Network Adapter" finds just two, no more and both are on very poor signals). I have to be in the same room where is rooter if I want to use the Internet, and as for my friends they can use same wireless connection all above the house. I tried to re-install all network drivers on my Laptop, use programs like Xirrus Wi-Fi inspector, but also, no more than two available connections with poor signal strengt.
More details: on the same rooter where tested four laptops ( all new bought on 2012 ), three of them except mine worked perfect with wireless connections(finds more than ten available from neighbors) and with strong full signal on our rooter.
I bought my laptop on 2012 08, with Windows 7 installed already. Please help to find and fix my wireless issue,