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After verifying that a computer is configured to act as a DHCP client, you can force a DHCP client to give up its current IP address, attempt to locate a new DHCP server, and request a new IP address.

To View the DHCP Configuration

1. To view the current IP configuration, run the following command:

ipconfig /all


For each network adapter, examine the DHCP Enabled line to determine whether DHCP is enabled. Additionally, you can determine the DHCP server that assigned the IP address by examining the DHCP Server line in the Ipconfig output.

If the DHCP client has an IP address in the range 169.254.0.0 to 169.254.255.255, the client has an APIPA address. APIPA addresses are automatically assigned when a DHCP client cannot contact a DHCP server. To solve the problem, verify that the client is connected to the network and that the DHCP server is online. If the DHCP server is connected to a different network than the DHCP client, verify that a DHCP relay agent is connected to the same network as the DHCP client and that the DHCP relay agent is configured with the DHCP server’s IP address. Then, with administrative privileges, run ipconfig /renew on the DHCP client.

To Request a New DHCP Address

1. Open a command prompt, and run the following commands:

ipconfig /release

ipconfig /renew