If your System Event Log contains:
Event: 4191
Source: TCP/IP
Description: IP could not open the registry key for adapter TCPIP\Parameters\Adapters\NDISWANIP.
Interfaces on this adapter will not be initialized.You
have a missing registry key, which is required for TCP/IP.
To fix the problem, you will have to remove and reinstall the TCP/IP protocol:
01. Right-click My Network Places and press Properties.
02. Right-click the appropriate connection object, and press Properties.
03. Select the Internet Protocol (TCP/IP) protocol and press Uninstall.
04. Shutdown and restart your Windows 2000 computer.
05. Right-click My Network Places and press Properties.
06. Right-click the appropriate connection object, and press Properties.
07. Press Install.
08. Press Protocol.
09. Press Add.
10. Select the Internet Protocol (TCP/IP) protocol and press OK.
11. Configure the settings in the Internet Protocol (TCP/IP) Properties dialog.
12. Press OK.
13. Shutdown and restart your Windows 2000 computer.
