Hey Hey,

If it works fine from home, and only not while at school the first question I'd ask myself is, "Do I use DHCP at home"... if yes....then I'd say they are using filtering software. At my college certain areas are open to students, however others require you register with your username and password and others are just MAC address filtered.. only certain MACs get access. I'd contact your Network Admin and ask him/her why you can't obtain an address. The DHCP server may answer certain requestions, your firewall may be blocking their DHCP server (this happened to a student in res. his firewall was set to allow DHCP only from the VLAN he was on.. he moved to a different room.. no VLAN and suddenly no IP Address)... There are many possibilities and you best bet is to follow up with those in charge of the network.

Peace,
HT