A user cannot enable video in a conference after you assign a conference policy to the user in a Lync Server 2010 environment

Symptoms

Consider the following scenario. You type the following command in Microsoft Lync Server Management Shell to configure a conference policy in a Lync Server 2010 environment:

Set-CsConferencingPolicy -AllowIPVideo $true -EnableP2PVideo $false

Note The command configures the EnableP2PVideo parameter to false, and the AllowIPVideo parameter to true.

You assign the conference policy to a Lync user. In this scenario, the user cannot enable video in a conference.  

Note The default AllowIPVideo parameter is set to true, and the default EnableP2PVideo parameter is set to false.

Resolution

To resolve this issue, install the following cumulative update:

2571543 Description of the cumulative update package for Lync 2010: July 2011 After you install the update, run the following command in Lync Server Management Shell to configure a Lync Server 2010 client policy:

Set-CsClientpolicy -PolicyEntry @{add=New-CsClientPolicyEntry -Name IgnoreEnableP2PVideoPolicyInConf -Value 1}

More Information

For more information about the Set-CsConferencingPolicy command, visit the following Microsoft website:

General information about the Set-CsConferencingPolicy commandFor more information about the New-CsClientPolicyEntry command, visit the following Microsoft website:

General information about the New-CsClientPolicyEntry commandFor more information about the Set-CsClientPolicy command, visit the following Microsoft website:

General information about the Set-CsClientPolicy command