After upgrading to the latest PRTG version this moring, the local and cluster probe health has been in a warning (and sometimes down) state. With the following error;
"104 % Delay (Probe Interval Delay WMI) is above the error limit of 100 % Delay. WMI Sensors of this probe can not be scanned in their specified intervals. Try longer intervals or distribute load over probes."
We have increased the scan interval from 5 minutes to 10, this had no effect.
It seems to tie in to the amount of "Probe open requests" and increase in the "Available memory", which doesnt seem to make much sense.