I just updated to Mavericks and now I can't connect to wifi. When I click on my own wifi network (from my router in the next room) I'm told my network "could not be joined. Try moving closer to your wireless router." (I am sure I'm not too far from my router, since I'm using wifi for my phone right now, while sitting in front of the computer.) I've also tried joining it as a new network in advanced settings, but then when prompted to enter my WPA password it just says "connection timeout" Any suggestions?