Informix Error -28021: A trusted connection was not established because a trusted context is not defined or not enabled for the specified authorization ID.

Reasons / Common Causes

-28021 fires when a trusted connection is requested for an authorization ID with no defined or enabled trusted context — per the official guidance.

1. No trusted context defined for the authorization ID, per the official guidance — the first named case.
2. A trusted context defined but not enabled, per the official guidance — the second named case.

Solutions / Resolution

1. Ensure the trusted context is correctly defined and enabled, per the official guidance, then establish the trusted connection.

Examples

N/A

No specific triggering statement is documented beyond a missing/disabled trusted context.

Diagnostic Checks

1. Check whether a trusted context exists for the authorization ID, and whether it's enabled.

Related Errors / Related Topics

• -28022 — "A trusted connection was not established because the encryption requirement for the connection was not met." A related trusted-connection error, on encryption requirements rather than context definition/enablement.

A trusted context wasn't defined or enabled for the authorization ID — define and enable it.