Hey, I am trying to link two apartments so one can share the other's wifi. In the first I've got a gen 5 Airport Extreme mounted about 5 feet up the closest wall to the apartment I want to provide access too. When testing in the second apartment I'm showing really poor signal on both my 2011 MBA and MBP. My iPhone 4 won't sustain a connection for more than a few seconds. I'm attaching a screen shot of my MBP connected to this Airport Extreme in case you are looking for specifics. What I'm wondering is this, would an Airport Express in repeater mode be able to deliver the internet connection more reliably? I'm afraid that its going to be in the same boat as my laptops are and just barely be able to hold onto a signal. Looking at the Airport Extreme it doesn't look like there's any way to hook up an external antenna to it. Should I be looking at a different router?