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"An error occurred ... please enter a valid URL ... HTTP status 407: Proxy Authorization Required" when launching Controller client caused by Proxy Server settings

Troubleshooting


Problem

User launches Controller. User receives error message.

Symptom

The error will vary slightly depending on Controller version.

Example #1 - Controller 10.1.0:

An error occurred while trying to access the server.
Please enter a valid server URL or contact your system administrator for assistance.

Example #2 - Controller 10.4.1:
An error occured while trying to access the server:
http://<servername>/ibmcognos/controllerserver
Details:
The request failed with HTTP status 407: Proxy Authorization Required.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Cognos.Controller.ControllerSoapHttpClientProtocol.Invoke(String methodname, Object[] parameters)
at Cognos.Controller.Proxy.Light.WSLight.CheckServerConnection(String sGuid, String sUser)
at Cognos.Controller.Direct.ServerInfoD.CheckServerConnection()
at CCR.AppContext.CheckConnectionToServer()

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9S6B","label":"IBM Cognos Controller"},"Component":"Controller","Platform":[{"code":"PF033","label":"Windows"}],"Version":"All Versions","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

More support for:
IBM Cognos Controller

Software version:
All Versions

Operating system(s):
Windows

Document number:
252365

Modified date:
08 May 2025

UID

swg21685825

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