Configure the DHCP server to recognize all options that the client sends.
To perform these procedures, you must be a member of the Administrators group, or you must have been delegated the appropriate authority.
To identify the DHCP options requested by the client:
Caution: Incorrectly editing the registry might severely damage your computer. Before making changes to the registry, back up any valued data.
At the DHCP client, click Start, in Start Search type cmd, and then press ENTER.
Type regedit, and then press ENTER.
Navigate the registry tree to the following entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp\Parameters\options
Under options, compare the option number requested by the client with the options configured on the DHCP server.
After comparing the option numbers, you can manage your DHCP options on the server or client so that they match.