A non-Windows Lightweight Directory Access Protocol (LDAP) client tries to bind a Windows Server 2008-based domain controller.
This client uses the Simple Authentication and Security Layer (SASL) protocol for user authentication.
This client makes a Secure Sockets Layer (SSL)/ Transport Layer Security (TLS) connection with the Windows Server 2008-based domain controller.
In this scenario, the Windows Server 2008 domain controller cannot negotiate Quality of Protection (QoP) for TLS connections from this non-Windows LDAP client and the binding process fails.
After this problem occurs, the following event is added into the Directory Service log:
Source: ActiveDirectory_DomainService EventID: 1535 Category: LDAP Interface Internal event: The LDAP server returned an error. Additional Data Error value: 00002029: LdapErr: DSID-0C09048A, comment: Cannot bind using sign/seal on a connection on which TLS or SSL is in effect, data 0, v1771
This problem occurs because Windows Server 2008-based domain controllers incorrectly deny the communication from non-Windows LDAP clients. You expereince this issue if you use Simple Authentication and Security Layer (SASL) authentication and SSL/TLS connections.
To resolve this problem, install the following hotfix on the affected Windows Server 2008 domain controllers.
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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
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, contact 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:
Note 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.
Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.
To apply this hotfix on Windows Server 2008-based domain controllers, you must have Active Directory installed.
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Server 2008 file information notes
The MANIFEST files (.manifest) and MUM files (.mum) installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008
For all supported x64-based versions of Windows Server 2008
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Additional file information for Windows Server 2008
Additional files for all supported x86-based versions of Windows Server 2008
Windows Server 2008 Standard, Windows Server 2008 Enterprise, Windows Server 2008 Datacenter, Windows Server 2008 Standard without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 Datacenter without Hyper-V