Made a post about Routing and Remote Access error in WinXP sometime ago, and I have yet another error currently with “Routing and Remote Access” again…..

This time the error from the EventLog was:
“The Routing and Remote Access service terminated with service-specific error 16389 (0x4005).”

A little bit Google-ing gave me an official answer and fix from Microsoft.

You cannot start the Routing and Remote Access service on a Windows 2000 Server-based computer or on a Windows Server 2003-based computer

Problem seems to be related to the Internet Authentication Service (IAS) database damaged in one of the system crash.

Followed the site and yes it did fix the problem, and my VPN server is now back up running again.