Symptoms:
The Usage Meter Products page shows invalid credentials status for a vROps instance that is no longer monitoring a vCenter Server added to Usage Meter. This vROps instance is still discovered by Usage Meter even it is no longer monitoring the vCenter Server added to Usage Meter.
VMware vCloud Usage Meter 4.x
The vROps extension still exists in the vCenter Extension Manager.
To resolve this issue, do the following: