IBM Support

"The request failed with HTTP status 503: The service is unavailable" when launching Cognos via IIS gateway

Troubleshooting


Problem

User launches Cognos Analytics portal, via the IIS gateway (http://servername/ibmcognos). An error appears.

Symptom

Service unavailable
Service Unavailable
HTTP Error 503: The service is unavailable

Document Location

Worldwide

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSTSF6","label":"IBM Cognos Analytics"},"Component":"","Platform":[{"code":"PF033","label":"Windows"}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SS6G84","label":"IBM Cognos Analytics on Cloud"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Document Information

Modified date:
01 May 2025

UID

ibm10885372