DB Connect Communication to server during setup?

[AirSplunk18]

Hey,

I'm using a Splunk Free License on Windows Server 2012 and I'm trying to install DB Connect 3.1.3.
After manually uploading the "splunk-db-connect_313.tgz" file and trying to run the app setup in Splunk Web, DB Connect stops working:

I've installed JDK 8 and after looking for internal splunk errors with index=_internal sourcetype="dbx*" error and I got the following notification:

Could this be a storage or network connection error? Does DB Connect need to communicate to others servers in order to install the app?

[jcoates]

Hi,

free license won't work with DB Connect, because it needs RBAC and that isn't available. If you're a licensed customer, you can have it contact your license master or you can contact support to get a forwarder license.

I'm not sure that message is related, but I am pretty sure that setup can't complete without an Enterprise license because it needs to do permissions-related activities.