Cannot Maintain Your L2TP Connection in Windows XP (322662)



The information in this article applies to:

  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional

This article was previously published under Q322662

SYMPTOMS

When you try to establish an L2TP connection with a non-Microsoft L2TP server, the connection may be established properly, but you may then immediately lose the connection.

CAUSE

If the non-Microsoft server does not use the default L2TP port 1701, Windows XP may switch back to the default port.

RESOLUTION

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:
   Date         Time   Version            Size    File name
   ----------------------------------------------------------
   12-Jun-2002  16:36  5.1.2600.48        48.256  Rasl2tp.sys
				

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Modification Type:MinorLast Reviewed:10/11/2005
Keywords:kbHotfixServer kbQFE kbbug kbenv kbfix kbnetwork kbQFE KB322662