We do not see new or current data showing up in DX NetOps Performance Management (PM).
The Data Aggregator (DA) shows as Green/Normal and is successfully synchronizing with Performance Center (PC).
The Data Collector (DC) shows as Green/Normal and fully connected.
All supported DX NetOps Performance Management releases
The DA is out of sync with the DC(s) for time
As seen in the Installation Requirements and Considerations: Common Considerations section of the documentation maintaining time synchronization between systems is required.
That section has a bullet point that states:
"Time synchronization using NTP is required. Start the NTP daemon on Linux if it is not running. All machines must use the same NTP server."