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Q124919: RAS Event 20026: Remote Access Server Security Failure

Article: Q124919
Product(s): Microsoft Windows NT
Version(s): 3.5,4.0
Operating System(s): 
Keyword(s): kbnetwork
Last Modified: 08-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Workstation versions 3.5, 4.0 
- Microsoft Windows NT Server versions 3.5, 4.0 
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SYMPTOMS
========

When you start the Remote Access Server (RAS) service on a multihomed
Transmission Control Protocol/Internet Protocol (TCP/IP) computer set up to
receive TCP/IP dial-in clients, the following event is written to the System
Log:

Event ID: 20026
Source: RemoteAccess
Type: Error
Description: Remote Access Server Security Failure. A network error has  occurred when you try to establish a session with the security agent on   LANA x. The error code is the data.

where x is the LANA number of your network card.

This error does not cause problems with RAS service.

CAUSE
=====

This problem occurs when the RAS service binds to two network interface cards
(NICs) on a multihomed TCP/IP computer, but only one network card is valid. The
network card connected to the subnet that you assign RAS clients TCP/IP
addresses from, is the network card that should be bound to the RAS service.

RESOLUTION
==========

To prevent the appearance of this event in the System Log, follow these steps:

1. Run Control Panel and select the Network icon.

2. Choose Bindings.

3. In the Show Bindings for:, select "Remote Access Server Service".

4. Select the binding for the TCP/IP protocol and NIC that you are not using for
  the RAS client, and then select Disable. For example, the binding entry may
  be:

  Remote Access Server Service -> TCP/IP Protocol -> <Adapter
  Driver>-> <Network Card>

5. Choose OK and restart Windows NT.

Additional query words: prodnt

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Keywords          : kbnetwork 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS350 kbWinNTS350search
Version           : :3.5,4.0

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