Reading this thread makes me sad to see that others appear to be facing this issue and no resolution has been found 😞   I too am suffering with this issue. We have an MX250 that has our primary and secondary DC set up for AD auth and the primary DC is constantly pegged due to the WMIPrvSE.exe task running as NETWORK SERVICE and we have errors visible within event viewer for WMI-activity that mention the user we have used for the AD integration. ... View more