An error occurred while trying to access server

Cognos Controller 10.4.2
Cognos Analytics 11.1.7
Microsoft Windows 2016 server

After a windows patch, no one can login to cognos controller.


An error occurred while trying to access server…

System.Web.Services.Protocols.SoapException: Server was unable to process request. —> System.IndexOutOfRangeException: Index was outside the bounds of the array….


Login to Windows server where CA11 and Cognos Controller IIS are.

Launch a command prompt
Type the following:    IISRESET


Check if you can login to Cognos Controller, after above restart of www service.

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