2010 MacBook Pro does not DHCP on a certain network (WiFi and Ethernet) As the title suggests, My Mac will not receive an address via DHCP from a certain network. No matter if it's connected via WiFi or ethernet, it always fails. Even when I boot into Windows 7 there's no luck (so it's not the OS). All the other computers, older MacBooks, and iPod/Phones work great on the network. Take it to a different network and it works flawlessly. 

Has anyone else had this problem? Did you find a way to fix it?

Update: Manually entering a valid IP (copied from another computer that's on the network) gets me a connection. The issue seems to be just in the DHCP.
Have you tried to set 'Configure IPv6' to OFF in the Network > Advanced settings for the en0 ?

I've just had a sim problem as yours (never got an address, other windows machines worked) that was resolved by turning it off. Then my IPv4 address was received.