Delete existing Registrar configuration settings in Lync Server 2013
Topic Last Modified: 2013-02-23
Follow these steps to delete a Registrar.
To delete Registrar configuration settings
From a user account that is a member of the RTCUniversalServerAdmins group (or has equivalent user rights), or assigned to the CsServerAdministrator or CsAdministrator role, log on to any computer that is in the network in which you deployed Lync Server 2013.
Open a browser window, and then enter the Admin URL to open the Lync Server Control Panel. For details about the different methods you can use to start Lync Server Control Panel, see Open Lync Server 2013 administrative tools.
In the left navigation bar, click Security and then click Registrar.
On the Registrar page, and in the search field, type all or part of the name of the Registrar you want to delete.
In the list, click the Registrar that you want, click Edit, and then click Delete.
Click OK.
Removing Registrar Configuration Settings by Using Windows PowerShell Cmdlets
You can delete the Registrar configuration settings by using Windows PowerShell and the Remove-CsProxyConfiguration cmdlet. You can run this cmdlet from the Lync Server 2013 Management Shell or from a remote session of Windows PowerShell. For details about using remote Windows PowerShell to connect to Lync Server, see the Lync Server Windows PowerShell blog article "Quick Start: Managing Microsoft Lync Server 2010 Using Remote PowerShell" at https://go.microsoft.com/fwlink/p/?linkId=255876.
To remove a specific set of Registrar security settings
The following command removes the Registrar security settings applied to the edge Server atl-edge-011.litwareinc.com:
Remove-CsProxyConfiguration -Identity service:EdgeServer:atl-edge-011.litwareinc.com
To remove all of the Registrar security settings applied to the site scope
The following command removes all the Registrar security settings applied to the Registrar service:
Get-CsProxyConfiguration -Filter "service:Registrar:*" | Remove-CsProxyConfiguration
To remove all of the Registrar security settings that allow NTLM authentication
The following command deletes all the Registrar security settings that allow the use of NTLM for client authentication:
Get-CsProxyConfiguration | Where-Object {$_.UseNtlmForClientToProxyAuth -eq $True}| Remove-CsProxyConfiguration
For details, see Remove-CsProxyConfiguration.