"0xc0040446" or "0xc004041d" error if the primary IP address or DNS address uses,, or in Forefront TMG 2010


Consider the following scenario:In this scenario, you receive one of the following error messages:
  • Error: 0xc0040446 - The specified IP address is reserved and cannot be used.

    Note You receive this error message if you configured the primary IP address.
  • Error: 0xc004041d - This network adapter DNS address is not defined using a valid IP address.

    Note You receive this error message if you configured the DNS address.


This issue occurs because these address ranges are incorrectly reserved.

The Requests for Comments (RFC) 3330 is implemented and reserves these address ranges. However, the RFC 3330 is obsolete. Therefore, the RFC 5735 that allows for the usage of these address ranges is not implemented.

For more information about RFC 3330, visit the following Internet Engineering Task Force (IETF) website:

For more information about RFC 5735, visit the following IETF website: 

Note The following RFC 5735 terms describe these address ranges:


Update information

To resolve this issue, install the software update that is described in the following Microsoft Knowledge Base (KB) article:
2498770 Software Update 1 rollup 3 for Forefront Threat Management Gateway (TMG) 2010 Service Pack 1


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

More Information

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

824684 Description of the standard terminology that is used to describe Microsoft software updates


文書番号:2500737 - 最終更新日: 2011/02/25 - リビジョン: 1