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    Default Configuring XenDesktop to work without an OU in AD

    If you've been dealing with registration issues it could likely be due to problems with the farm GUID in AD. These values can be set manually and Citrix has stated that using the manual option is on the product roadmap for XenDesktop. Anyone with more than 100 XenDesktop workstations should use the manual registration process as described in the Citrix Support link below.

    Update Feb 2011: I have been on two separate installations recently in which I had to use the FQDN or the agents would never register. Something may have changed with the newer agents which forces that requirement. In each case I was able to ping and telnet to the DDC using either the NETBIOS name or the FQDN, but the agent did not register until the FQDN was used.

    http://support.citrix.com/article/CTX118976

    On the DDC, set the following registry value to have the DDC support the farm without an AD OU.
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\DesktopServer]
    "SupportFarmWithoutOU"=dword:00000001


    Regfile code to remove OU settings from XenDesktop Agents (x64) if you already have agents deployed using a farm GUID.
    Code:
    Windows Registry Editor Version 5.00
    
    [-HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\VirtualDesktopAgent]
    Regfile code to input DDC settings manually on XenDesktop Agents (x64). Edit the server names separated by a space.
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\VirtualDesktopAgent]
    "ProductInstalled"=dword:00000007
    "ResyncTimeOnFailedRegister"=dword:00000001
    "ListOfDDCs"="ddcserver1.fqdn ddcserver2.fqdn"
    
    [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\VirtualDesktopAgent\InstallData]
    "WCF_PORT"="8080"
    Regfile code to remove OU settings from XenDesktop Agents (x86) if you already have agents deployed using a farm GUID.
    Code:
    Windows Registry Editor Version 5.00
    
    [-HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\VirtualDesktopAgent]
    Regfile code to input DDC settings manually on XenDesktop Agents (x86). Edit the server names separated by a space.
    Code:
    Windows Registry Editor Version 5.00
    
    [HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\VirtualDesktopAgent]
    "ProductInstalled"=dword:00000007
    "ResyncTimeOnFailedRegister"=dword:00000001
    "ListOfDDCs"="ddcserver1.fqdn ddcserver2.fqdn"
    
    [HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\VirtualDesktopAgent\InstallData]
    "WCF_PORT"="8080"
    Last edited by Brian; 01-26-2011 at 12:34 PM.
    Brian Welchel
    CTXSupport.com

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