I also have the error, Data is not available ...
Running NTA 4.0.3 and DB is on a separate server, I have run every diagnostic and check that I am aware of, re-installed NTA, but it will not
provide any graph data. I should note that I do see changing data stats under “Top 10 NetFlow Sources by % Utilization” and if I add or change a remote device, I see the traffic warning “NetFlow Receiver Service [ORION01] is receiving flow data from xxxxxx”
At this point I am totally lost on next steps, so any help would be appreciated