Event ID 771 — Multicast Initialization

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Applies To: Windows Server 2008 R2

When the WDSServer service is started, the multicast server initializes. During initialization, the multicast server reads the configuration settings and determines whether any multicast transmissions or namespaces are still valid (and restarts them if they are). The multicast server must initialize successfully before it can function correctly.

Event Details

Product: Windows Operating System
ID: 771
Source: WDSMC
Version: 6.1
Symbolic Name: EVT_WDSMCS_E_NSREG_FAILURE
Message: The namespace %1 using content provider %2 could not be registered due to an unknown error.

Error Information: %3

Resolve

Recreate the namespace

When the multicast server initializes, it reads the configuration settings and determines whether any multicast transmissions or namespaces are still valid (and restarts them if they are). If the Multicast Server finds invalid namespaces (for example, those from a time that has past or with a name is already in use) it will delete them. If you want to transfer the failed content using multicast, you will need to recreate the namespace.

Note: The failed namespace is specified in the event log message. To find this message, open Event Viewer, expand Custom Views, expand Server Roles, click Windows Deployment Services, and then find WDSMC event 768, 770, or 771.

To create a transmission (for the Deployment Server role service):

  1. Open the Command Prompt window.
  2. Do one of the following at the command prompt:
    • To create an Auto-Cast transmission, run WDSUTIL /New-MulticastTransmission /Image:<image name> /FriendlyName:<friendly name> /ImageType:Install /ImageGroup:<Image group name> /TransmissionType:AutoCast
    • To create a Scheduled-Cast transmission, run WDSUTIL /New-MulticastTransmission /Image:<image name> /FriendlyName:<friendly name> /ImageType:Install /ImageGroup:<Image group name> /TransmissionType:ScheduledCast [/Time:<yyyy/mm/dd:hh:mm>][/Clients:<no of clients>]

To create a transmission (for the Transport Server role service):

  1. Open the Command Prompt window.
  2. Do one of the following at the command prompt:
    • To create a Scheduled-Cast namespace, run WDSUTIL /New-Namespace [/Server:<server name>] /Namespace:<namespace name> /FriendlyName:<friendly name> [/Description:<description>] /ContentProvider:<name> /ConfigString:<config string> /NamespaceType:ScheduledCast [/Time:<YYYY/MM/DD:hh:mm>] [/Clients:<number of clients>].
    • To create an Auto-Cast namespace, run WDSUTIL /New-Namespace [/Server:<server>] /Namespace:<namespace name> /FriendlyName:<friendly name>  [/Description:<description>] /ContentProvider:<name> /ConfigString:<config string> /NamespaceType:AutoCast.

For more information, see the "Creating a multicast transmission" section at https://go.microsoft.com/fwlink/?LinkId=89225.

Verify

To verify that the multicast server initialized successfully:

  1. Open Event Viewer. (Click Start, type Event Viewer in the Start Search box, and then press ENTER.)
  2. In the left pane, expand Custom Views, expand Server Roles, and then click Windows Deployment Services.
  3. Click the Date and Time column heading to sort the events based on the date and time.
  4. Find WDSMC event 512.

Multicast Initialization

Windows Deployment Services