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  2. You are prompted for your credentials three times and you receive an error message when you use the Outlook Anywhere feature to connect to an Exchange Server 2007 Service Pack 1�based server that is running Windows Server 2008

You are prompted for your credentials three times and you receive an error message when you use the Outlook Anywhere feature to connect to an Exchange Server 2007 Service Pack 1�based server that is running Windows Server 2008

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Symptoms

When you use the Outlook Anywhere feature to connect to an Exchange Server 2007 Service Pack 1�based server that is running Windows Server 2008, you are prompted for your credentials three times. Additionally, you may receive the following error message:
The connection to Microsoft Exchange is unavailable. Microsoft Outlook must be online or connected to complete this action.

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Cause

Windows Server 2008 prefers to use IPv6 protocol instead of the IPv4 protocol. The Exchange 2007 server does not listen to some specific ports on IPv6 that are used for Outlook Anywhere. Therefore, this problem occurs.

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Resolution

To resolve this problem, download Update Rollup 4 for Exchange Server 2007 Service Pack 1. Then, install the update on the Exchange server. For more information about Update Rollup 4 for Exchange Server 2007 Service Pack 1, see the following Exchange Help topic:
Description of Update Rollup 4 for Exchange Server 2007 Service Pack 1
For more information about how to obtain the latest Exchange service pack or update rollup, see the following Exchange Help topic:
How to Obtain the Latest Service Pack or Update Rollup for Exchange 2007

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More information

For more information about Outlook Anywhere, visit the following Microsoft Web site:
http://technet.microsoft.com/en-us/library/cc540453(EXCHG.80).aspx

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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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Keywords: KB950138, kbqfe, kbexpertiseadvanced, kbfix, kbhotfixrollup

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Article Info
Article ID : 950138
Revision : 4
Created on : 10/7/2008
Published on : 10/7/2008
Exists online : False
Views : 275