Unix terminal re-assigned with wrong IP address from window's DHCP

Hi all,

I have this problem that puzzles me, i have setup all the right DHCP configuration in Windows Server. The reservation IP address in windows for this specific unix terminal. However, when i rebooted the unix terminal the IP which was already assigned for this box somehow change to a total new IP address and subnet mask?

How could this have changed? i have checked everything in windows server and also rebooted the system a few times.

Help please.... what file should i look at in unix solaris to check for?

Thanks