Troubleshooting
Problem
User launches Controller client. User enters username/password. An error message appears. Problem is intermittent.
Symptom

Server was unable to process request. ---> System.Exception: Communication link failure
TCP Provider: The semaphore timeout period has expired
[{"Product":{"code":"SS9S6B","label":"IBM Cognos Controller"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Controller","Platform":[{"code":"PF033","label":"Windows"}],"Version":"10.2.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSMRTZ","label":"IBM Cognos Controller 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:
08 May 2025
UID
swg21999741