We came into this issue recently, in a window of a few minutes we got many of our WMI sensors not only from groups running under core probe server but also sensors running under remote probe server. At the moment of the failures, we checked target hosts and they all seemed to be working as expected and no issues were found in any of them. After restarting the server hosting the Core probe of PRTG, the errors cleared up with the exception of a couple of servers sensors (running under core probe group, those 2 actually did have an issue with their WMI, so a fix to WMI and reboot fixed them). We believe that having those 2 at fault made the core probe to think there was an issue with its memory so it triggered the error "Not enough storage is available to process this command ", so the questions are: Is there any suggestion to avoid the behavior we saw with the rest of the sensors that were ok but reporting errors?, Is there a setting somewhere on PRTG service for the core probe or even the remote probe to set it to use more memory if necessary?, or basically anything else that can help so we dont run into this issue again?
Thanks in advance.