DHCP not giving IP address’ on Server 2003

Hi, Just having a few issues here, I’ve got an HP Proliant DL380 that I am setting up. Its part of the big network yet but I had a couple of machines connected to it. It was all going fine and now suddenly the DHCP has stopped giving IP address’.

Any machine I connect to it gets limmited or no connectivity and a 169 address. If I put in the address manually its fine.

I have checked that its activated and Autherised etc. Stopped and started the DHCP server, Removed the scope and put it back in. Everything I can think of,

Any ideas?