This so far has only been a problem in Windows environments and has to do with permissions.
Trying to launch the jnlp file to install either an agent or cluster node, and nothing happens.
Process Automation - All supported versions
There are a number of things to check, and finally an install using the Java Cache Viewer.
First, make sure that Windows UAC is disabled. User account control settings should be set to never notify. This can be returned to the previous level after the installation has completed.
Next, open the Java control panel - Windows control panel / Java. Select Network Settings:
Make sure Direct Connection is selected:
Save and apply the changes.
If this does not resolve the ability to launch the JNLP file, do the following.
To complete the installation, a command prompt must be opened using Run As Administrator:
At the command line, enter
This opens first the Java Control Panel, then automatically opens the Java Cache Viewer:
Although the cache viewer can be directly opened via the control panel, it must be done using the command prompt opened via Run As Administrator to set the correct permissions.
From the Java Cache Viewer, you will select the Orchestration Installation application object or the Agent Installation depending on which you are installing. With the appropriate choice selected, click on the green play button at the top of the cache viewer box and the installation will proceed as expected.