What does HRESULT 0x80290209 (TBSIMP_E_RPC_INIT_FAILED) mean?

Status / error code:

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Constant name:

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Description:

The RPC subsystem could not be initialized.

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TBSIMP_E_INVALID_PARAMETER	TBSIMP_E_SCHEDULER_NOT_RUNNING

TBSIMP_E_RPC_INIT_FAILED

TBS RPC initialization failed

TBSIMP_E_RPC_INIT_FAILED (0x80290209) means the implementation could not establish the service/RPC infrastructure needed for TBS operation. TPM command semantics are downstream of this failure.

Evidence to capture

Record TBS service state, RPC endpoint initialization, service identity, dependency/service errors, startup timing, and firewall/security changes affecting local RPC.

Focused correction

Restore the supported TBS service/RPC path and create a fresh TBS context. Avoid retry loops that continue sending TPM commands while the service channel is unavailable.

Technical references

Microsoft: About TPM Base Services.
Microsoft: TBS return codes.
Microsoft: Tbsi_Context_Create.
Microsoft: Tbsip_Submit_Command.

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