The User Capabilities Cache cookie cannot be decoded

Product:
Cognos BI 10.1.1
Internet Explorer

Symptom:
Error when you try to surf to Cognos Connection in Internet Explorer

Error message:
DPR-ERR-2107
The User Capabilities Cache cookie cannot be decoded.

Solution:
Close all Internet Explorer windows and start again.

You are logged into a other Cognos BI server Cognos Connection in other Internet Explorer window, that make it not possible to login to a new Cognos BI server.

Test to add this change in CA 10.2 or later versions:

Launch “IBM Cognos Configuration -> Action -> Edit Global Configuration -> General” and configure the Cookie settings “Domain” and “Path” for each installation

Example:
Domain : .server1.domain.com
Path : /ibmcognos/

Domain : .server2.domain.com
Path : /ibmcognos/

Note: Do not forget the point before the server name.

 

More Information:

https://www.ibm.com/support/pages/node/721275