Ok so i am in a student house and there are two routers creating a small wifi network, the problem is one of the routers doesn't work properly, since i don't want any problems with the landlord i cant change it, plus i dont have admin access, the landlord keeps sending repair guys around and instead of changing the router they mess-about with the settings and pretty much change nothing. My problem is this, the router that doesn't work has a channel frequency of 1 and the one that does has ch frq. of 9. The router that doesn't work is closer to my room thus my computer always automatically connects to it (only 2-3% difference in signal strength). I have a macbook and i'm on OSX mountain lion , so how can i connect specifically to the channel 9 router every time?