Having an odd problem. I have some devices I monitor with EXE/Script Advanced sensors, these sensors spawn a perl script that opens and ssh session, collects some output, and returns XML to PRTG. These work fine generally, I use 15 of these sensors per device monitoring different statistics.
However, if I reboot the monitored device, ie, the device is not reachable for some period and then comes back, the PRTG probe never recovers from this. The Core/Probe Health sensor goes to the error state with status along these lines: 275 % Delay (Probe Interval Delay non-WMI&SNMP) is above the error limit of 100 % Delay. Sensors of this probe can not be scanned in their specified intervals. Try longer intervals or distribute load over probes.
The indvidual probes give this error status: Timeout caused by wait for mutex (code: PE035)
Rebooting the PRTG probe device resolves this.
Any suggestions? Thanks, Tim