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Windows 2000 Remote Access Service Logs Event 20171Article ID: 306193 - View products that this article applies to. This article was previously published under Q306193 SYMPTOMS
On a Windows 2000-based server that is running the remote access service and that you have configured for L2TP connections, the following event may be recorded in Event Viewer:
Event Type: Warning Event Source: RemoteAccess Event Category: None Event ID: 20171 Description: Failed to apply IP Security on port Server name and L2tp Port number because of error: The RPC server is unavailable. No calls will be accepted to this port. CAUSE
This event is typically logged on Windows 2000 servers that are running the remote access service and Internet Security and Acceleration (ISA) Server on the same server, which is due to a race condition between these two services.
RESOLUTION
To work around this problem, configure the remote access service to start manually instead of automatically, and then after you start the computer, you can manually start the remote access service. To configure the remote access service to start manually, use the Services tool in the Administrative Tools folder (Click Start, point to Programs, and then click Administrative Tools), or change the configuration in the properties of the remote access service. STATUSMicrosoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. MORE INFORMATION
Simply setting dependencies for the remote access service may not resolve this race condition, which is why the workaround that is provided in this article is suggested.
PropertiesArticle ID: 306193 - Last Review: October 31, 2006 - Revision: 2.2
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