Microsoft KB Archive/813547

= Remote Assistance Sessions That Are Initiated from Internal Internet Connection Sharing Clients Cannot Connect =

Article ID: 813547

Article Last Modified on 12/3/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, 64-Bit Datacenter Edition
 * Microsoft Windows Small Business Server 2003 Standard Edition
 * Microsoft Windows Small Business Server 2003 Premium Edition

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SYMPTOMS
If you use Internet Connection Sharing on a computer that is running Windows Server 2003, Remote Assistance sessions that are initiated from internal Internet Connection Sharing clients cannot connect.



CAUSE
This behavior occurs because Windows Server 2003 does not support Universal Plug and Play (UPnP) that internal Remote Assistance clients use to determine the external IP address and port number of the NAT/Internet Connection Sharing device. Because of this, external computers cannot establish inbound connections to clients that are &quot;behind&quot; the NAT/Internet Connection Sharing device.

Keywords: kbprb KB813547

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