I went to a friend's home, he just got a new MBP 15" and it automatically pops up a dialog box showing several wireless networks with varying signal strengths and asks to select one, then asks for a password. He also has a 24" iMac 2009, but connects to the web by ethernet, never set up the wireless. I assume the password asked for is for access to the ISP router (strongest signal strength of the networks shown) but he doesn't know it. Is this password a default (maybe to be found in the router manual)? or something that has to be setup by accessing the router? I assume the password asked for is not the same as the WEP or WPA password, but I am not sure, being quite a noob myself when it comes to networking. Any help appreciated.