Article ID: 954313 - Last Review: January 20, 2012 - Revision: 3.2

Error message when you try to log on to the Microsoft Dynamics CRM Web site from the Microsoft Dynamics CRM 4.0 server: "Request IP Address has different address family from network address"

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SYMPTOMS

When you try to log on to the Microsoft Dynamics CRM Web site from the Microsoft Dynamics CRM 4.0 server, you receive the following error message:

Request IP Address has different address family from network address.

This problem occurs if the following conditions are true:

You run Microsoft Dynamics CRM 4.0 on a Windows Server 2008-based computer that has IPv6.
You use Internet-Facing Deployment (IFD) for Microsoft Dynamics CRM 4.0.

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RESOLUTION

Because Microsoft Dynamics CRM 4.0 does not support IPv6 only, make sure that IPv4 is also enabled.
This problem is fixed in the latest cumulative update rollup for Microsoft Dynamics CRM 4.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
949256 (http://support.microsoft.com/kb/949256/ ) Microsoft Dynamics CRM 4.0 updates and hotfixes

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 (http://support.microsoft.com/kb/824684/LN/ ) Description of the standard terminology that is used to describe Microsoft software updates

For more information about Microsoft Business Solutions CRM software hotfix and update package terminology, click the following article number to view the article in the Microsoft Knowledge Base:

887283 (http://support.microsoft.com/kb/887283/ ) Microsoft Business Solutions CRM software hotfix and update package naming standards

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