Troubleshooting
Problem
This tech note describes a solution for an intermittent error experienced when running reports with prompts. When trying to run these reports, users sometimes experience an error where there report doesn't load and instead the message "502 Bad Gateway" is shown. Occurs on systems usign load-balancers.
Symptom
Symptoms of the issue:
- Reports sometimes work after clearing the browser cache
- Issue is intermittent
- Performance of report is also slow
- Error doesn't happen when by-passing gateway and using load-balancing URL instead
- No recent changes to Gateway servers or configuration
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSTSF6","label":"IBM Cognos Analytics"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"11.0.x","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"}},{"Product":{"code":"SSLKT6","label":"IBM Maximo Asset Management"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]
Log InLog in to view more of this document
This document has the abstract of a technical article that is available to authorized users once you have logged on. Please use Log in button above to access the full document. After log in, if you do not have the right authorization for this document, there will be instructions on what to do next.
Was this topic helpful?
Document Information
Modified date:
13 January 2026
UID
ibm10742707