SystemServerClientNotFound after change of custom certificate

Planning Analytics 2.0.6
Microsoft Windows 2016 server

After change of Certificate for Cognos Analytics 11 dispatcher level. The user can not login in TM1 Architect.  This when you use CAM security (IntegratedSecurityMode=5).
You get error message like: SystemServerClientNotFound

When you update the CA11 Websphere (dispatcher) with a custom certificate, you need to add the root and intermediate certificate to the other parts like TM1 servers (planning analytics).

Download the root and intermediate certificate to BASE-64 cer files.
Copy the files to the TM1 server.
Go to a COMMAND prompt as administrator.
Go to folder C:\Program Files\ibm\cognos\tm1_64\bin64
Run a command similar to this:

gsk8capicmd_64 -cert -add -db “D:\Program Files\ibm\cognos\tm1_64\bin64\ssl\ibmtm1.kdb” -stashed -label caRoot -file “C:\temp\rootcert.cer” -format ascii -trust enable

gsk8capicmd_64 -cert -add -db “D:\Program Files\ibm\cognos\tm1_64\bin64\ssl\ibmtm1.kdb” -stashed -label caIntermediate -file “C:\temp\intercert.cer” -format ascii -trust enable

Then you need to restart the TM1 service instances, for the change to take effect.

More Information: