You may occasionally need to change a remote system from a static IP to a dynamic IP (DHCP).

Here's how:

1. Open Regedt32 and view the remote registry via File | Select Computer.
2. Navigate to HKEY_LOCAL_MACHINESOFTWARE
   MicrosoftWindows NTCurrentVersionNetworkCards1 (or whatever number card you need to change -- some machines may have multiples) and record the ServiceName value.
3. Navigate to HKEY_LOCAL_MACHINESYSTEM
   CurrentControlSetServices<ServiceName>Parameters
   TCPIP, where <ServiceName> is the name you recorded in the previous step.
4. Change the values of EnableDHCP to 1 and IPAddress And SubnetMask to 0.0.0.0.
5. Navigate to HKEY_LOCAL_MACHINESYSTEM
   CurrentControlSetServicesDHCP and change the Start value to 2.

Note: Please remember that editing your registry can be risky; always have a verified backup before you begin.