M204.3017
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M204.3017 WebSocket upgrade was not successful
The HTTP Upgrade negotiation that establishes the WebSocket connection to the Imagine broker did not complete successfully. The connection is closed.
Response:
Message attributes:
| RETCODEO=0 | Sets online return code |
|---|---|
| RETCODEB=4 | Sets batch (single user) return code |
| CLASS=E | Error class; the message can be suppressed with the X'04' bit setting of the MSGCTL parameter |
| AUDITMS | Writes the message with line type MS to the audit trail |
| NOCOUNT | Does not increment the error count (ERCNT) parameter |