WinSyslog Event ID 11020: Control Windows Service action could not open Service Control Manager#

Answer#

The action could not obtain the Windows Service Control Manager handle required to inspect or control the configured service.

Event ID: 11020
Severity: Error
Component: Control Windows Service action
Windows Event Log source: AdisconWinSyslog
Available since: 26.07
Message pattern: Could not open Service Control Manager; Windows error {error_code}.

Translate the Windows error code from the event.
Confirm the product service account and its permission to manage the intended service.
Correct the account or policy and run a controlled service action.

Verify a program or Windows-service control action — Check target, arguments, working directory, account rights, and positive result.
Collect an Event ID and neighboring product events — Preserve the complete event and the product events immediately before and after it.
Export configuration and collect a bounded debug log — Create a text configuration export and time-bounded debug capture, then disable debugging.

Confirm that the controlled action changes or queries the intended service and Event ID 11020 does not recur.

The complete Windows Application Event Log entry and neighboring product events from the same time window.
The exact product version, affected service or action name, and event timestamp with time zone.
The affected configuration object and a bounded debug log covering one controlled reproduction.
Remove passwords, tokens, license data, private keys, message payloads, personal data, and customer-identifying names, addresses, hostnames, domains, and network addresses before sharing evidence.

If the event continues after the detailed procedures, collect the listed evidence and contact Adiscon Support.