This knowledge article will cover two possible scenarios for no polled data collected.
Scenario 1:
The device shows device components but the status for those components are set to inactive and not polled. Previously it was working and the status was active and it was polled every 5 minutes. As a result there there is no data to display when viewing the dashboard for the device.
Scenario 2:
Discovered a new device but do not see all the data regarding the device.
Seeing issues with selective polling or polling for some metrics(partition), but others (CPU/MEM) are not showing or being reported on.
DX Performance Management NetOps
The devices are no longer part of a collection that had a monitoring profile associated.