Unable to connect to the cluster from the outside, the issue was initially discovered when tried to connect to Tableau from an external machine (even if it was inside the same network) but is valid to any sort of connections to the data grid from outside the cluster.
The problem was communication with the lookup service.
Tableau Desktop error:
Bad Connection: Tableau could not connect to the data source.
Error Code: 37CE01A3
Error instantiating JsonCustomSchema(name=Operations)
Unable to connect to the InsightEdge by GigaSpaces server "184.108.40.206". Check that the server is running and that you have access privileges to the requested database.