After upgrade to Univiewer WebConsole v6.1.41 logon not possible.

Document ID : KB000085947
Last Modified Date : 14/04/2018
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Error Message :
Following error message pops up:

UniViewerWeb Console:
Connection refused:
Your UniViewer Console version is not compatible with the UniViewer gateway and needed to be updated.

Patch level detected:Univiewer Console 6.1.00
Product Version: Dollar.Universe 6.1.0

Description :After upgrade of the Univiewer WebConsole to version 6.1.41 it is no longer possible for a user to login.
OS: All
Cause type:
Root Cause: The problem is comes from the fact that the user has downloaded again the JNLP file from the Tomcat Server after the upgrade.
The problem can be fixed by cleaning up the local java cache and downloading again the JNLP file from the Tomcat Server. (Control Panel ==> Java ==> panel global ==> temporary files ==> deleting java cache).

Fix Status: No Fix
Additional Information:
Workaround :