Several users have reported an issue in which the computer’s gateway is missing after the update to Windows Vista SP2. This issue generally results in an inability to connect to the Internet, although connections to LANs may still work.
The solution for this problem, as discovered by Ilja Herlein of the NetSetMan forums, is as follows:
- Click Start
- In the search box (or in or in “Run”) type regedit then press enter to open the registry editor.
- Navigate to HKLM > System > CurrentControlSet > Services > Tcpip > Parameters > Interfaces
- Select the CLSID of your network adapter that you are currently using.
- Open the value “DefaultGateway” (double-click it). You will see a list of all the gateways that has disappeared.The first line will likely be empty. Manually remove this first empty line, then click OK.
- Restart your computer.