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EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR
EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR is a Windows Deployment Services (WDS) Multicast Server result. It indicates that the requested WDS multicast address conflicts with another multicast service on the network.
What to check for EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR
- Identify the host or application using the address before changing WDS configuration.
- Choose an unused multicast address or range approved for the deployment network.
- Coordinate with network operators when multicast traffic crosses routed or shared segments.
For EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR, Microsoft documentation on the Windows Deployment Services Multicast Application Protocol
Diagnostic interpretation of EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR
EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR has the HRESULT value 0xC1210203. AllStat records the condition as “The multicast IP address %1 is being used by another multicast server, which has IP %2. For EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR, use the Windows Deployment Services management tools to configure your multicast IP address range to avoid this multicast IP address. If you allow this overlap to continue, your network usage will be increased.”. For EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR, in practice, interpret that wording at the boundary owned by Windows Deployment Services, rather than treating the value as a generic Windows message.
Evidence to capture for EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0xC1210203 value before a wrapper converts it to an exception or Boolean result.
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR or the evt / wdsmcs / non / wds / duplicate operation.
- Preserve the first failure in the call chain; a later HRESULT can describe cleanup rather than the original evt / wdsmcs / non / wds / duplicate condition.
Retry and recovery for EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR
Retry EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR only when the owning API documents a transient state or after the condition described as “The multicast IP address %1 is being used by another multicast server, which has IP %2. For EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR, use the Windows Deployment Services management tools to configure your multicast IP address range to avoid this multicast IP address. If you allow this overlap to continue, your network usage will be increased.” has changed. For EVT_WDSMCS_E_NON_WDS_DUPLICATE_MULTICAST_ADDR, configuration, policy, format, and authorization failures normally require correction first; an immediate loop can hide the original call site and add secondary errors.
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