What does Windows error code 1715 (RPC_S_NOT_LISTENING) mean?

RPC_S_NOT_LISTENING

RPC_S_NOT_LISTENING means that an RPC server is not in the listening state required by the operation. The server may not have completed initialization, may have stopped listening, or may be using a different interface mode.

What to check for RPC_S_NOT_LISTENING

• Confirm the order: register interfaces and protocol sequences, then start listening.
• Check whether RpcMgmtStopServerListening or service shutdown ran before the operation.
• Do not confuse an auto-listen interface with a manually started listener; they follow different lifecycle rules.

Microsoft: RpcServerListen · RpcMgmtStopServerListening

Where the result is returned

This result is Win32 system error 1715 (0x000006B3) from winerror.h. AllStat describes it as “The RPC server is not listening.”