A hotfix is available that addresses some issues with the DirectAccess feature in Windows 7 Beta

Issue 1

When you try to connect a DirectAccess client to a Windows 7 Beta-based DirectAccess server, the connection fails and you receive the following error message:

Issue 2

The IP-HTTPS tunnel adapter does not start to work automatically when Teredo connections are disabled. Therefore, connectivity is lost in domain networks and for computers that incorrectly identify themselves as in a managed network.

Issue 3

Both Teredo connections and IP-HTTPS connections are present at the same time. If you restart the IP Helper service (Iphlpsvc), this issue may disappear. However, restarting the service does not always work.

Issue 4

Teredo connections intermittently stop working.

Cause of Issue 1

This issue occurs when the message identifiers between the client and the server are not synchronized. This occurs because of network latency or the Authentication Identifier was deleted incorrectly.

Cause of Issue 3

This issue occurs because IP-HTTPS checksums for Neighbor Discovery Packets are incorrect and IP-HTTPS cannot add mapping table entries after duplicate addresses are detected.

Cause of Issue 4

The issue occurs when Teredo ICMPV6 Echo Replies are dropped by multiple active firewall profiles (MAFP) on the Windows 7 Beta-based DirectAccess Server.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.