To resolve this issue, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps:

1.Click On the Start button, type regedit in the Start Search box, and then click regedit in the Programs list. 2.Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

\Interfaces\{GUID} In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network. 3.On the Edit menu, point to New, and then click DWORD (32-bit) Value. 4.In the New Value #1 box, type DhcpConnEnableBcastFlagToggle, and then press ENTER. 5.Right-click DhcpConnEnableBcastFlagToggle, and then click Modify. 6.In the Value data box, type 1, and then click OK. 7.Close Registry Editor.

NOTE: You should do this for each and every GUID subkey. NOTE2: (GUID) is a mnemonic for the individual subkeys, the actual text “GUID” does not appaer.