Hey everyone, I'm new here and could use some help. I have a 2011 MacBook air that is unable to "see" my local wifi network." What is strange is that it is able to detect other networks in my apartment building and both my iPhone and my iPad are able to see my network and connect to it...which is how I'm posting this thread. My air has mountain line installed on it. Also, what may be relevant is that when I first started experiencing a slow Internet connection I connected to my router settings and tried to change the channel thinking that there might be a lot of interference affecting my connection. I completely lost connection to the router while it was rebooting after the channel change. Any advice would be greatly appreciated.