Hey everyone, I took my laptop to class today, which I normally don't do, and I connected o my school's WiFi network. The problem is now that I am back in my apartment I cannot connect to my WiFi. My computer will not automatically join my network, and when I try to join it says invalid password, even though I have tried all of my go-to passwords. I looked in my keychain and for some reason my password wasn't there either. The problem is compounded by the fact that when I open the Airport Utility, it says that no devices are in range, even though my Airport is on (with a green status light) and sitting about 3 feet from my computer. I tried restarting my computer to no avail. It is important that I have Internet. Please help.