Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


When the CreateResolutionQuery2 function is called multiple times in a Lync Server 2010 environment, the EnableContactMergeUsingProxyAddress property settings create a code loop. The code loop then causes an IP telephone to restart unexpectedly.


This issue occurs because the EnableContactMergeUsingProxyAddress property settings are changed unexpectedly after you apply the update that is described in Microsoft Knowledge Base (KB) article 2498410.


To resolve this issue, install the following cumulative update:

2630294 Description of the update package for Lync 2010: October 2011


To work around this issue, remove the EnableContactMergeUsingProxyAddress property, or use the Lync Server Management Shell to set the property to true.

More Information

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

2498410 A user name is still in Lync 2010 after you remove the user account in AD

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!