There is no procedure worth the effort. It's stored in a registry key, but that portion of the registry is cached while the network subsystem is running. So you'd have to shut the system down, boot another OS installation, mount the registry, delete the key, and then reboot into the original OS installation. The key is DhcpIPAddress but it is only used across reboots, so you can't modify it.
Uninstalling and re-installing the network adapter might work.
Best Answer
The DHCP server used to obtain an address is included in the output of
ipconfig /all
.