Hi - One of our users on a large college network has an early 2008 MacBook Pro running Lion. The other day the laptop froze, and ever since it has not been able to pick up IP addresses via DHCP, it will only assign itself a 169.254 range address. The problem exists on both ethernet & wi-fi. I have tried the following without success; Removed proxy entries/PASV mode New Location Different user account Trashed the 'SystemConfiguration' folder Removed all college entries from keychain Installed USB ethernet adapter Reset PRAM The ethernet cable and wallport it is connected to work fine with other PCs. I am running out of ideas - any suggestions please? Thanks.