Unfortunately, those settings didn't change anything. At this point I'm suspecting some sort of incompatibility between my school's network and the built-in wireless card (I've attempted to connect to other routers with the same configuration and encountered the same issues). I'll try...
I've run into a peculiar issue with a laptop I've obtained recently, a Sony Vaio VPCZ112GX. I'm able to connect to my wireless router, an ASUS RT-12 configured as an access point using the stock 1.0.0.6 firmware. However, despite a fully functioning network connection (I can ping other...