HRESULT 0x80320036 (FWP_E_TOO_MANY

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Description:

The maximum number of WFP sublayers has been reached.

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FWP_E_INVALID_PARAMETER	FWP_E_CALLOUT_NOTIFICATION_FAILED

FWP_E_TOO_MANY_SUBLAYERS

FWP_E_TOO_MANY_SUBLAYERS means WFP cannot create another sublayer because the platform limit has been reached. It generally indicates leaked or unnecessarily fragmented policy configuration.

What to investigate

Create a stable, reusable sublayer per policy provider rather than a new sublayer per rule or per process start.
Remove application-owned sublayers during uninstall and upgrade, after deleting dependent filters.
Inspect provider ownership before deleting anything; third-party firewall policy may share the engine.

Microsoft: WFP object model

Microsoft: WFP error codes

Microsoft: netsh wfp

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