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My Probe sensor is not receiving data



My Probe Health sensor has not received data for almost 24 hours - it is just sitting there grey, I created a new sensor and that is working okay, but as I can't delete the "bad" sensor as it is a "fixed" object I would like to get it fixed.

no-data probe-health-sensor status-unknown

Created on May 18, 2013 11:30:22 PM

4 Replies

Accepted Answer




we have seen this issue before where there were some timechanges being made on the PRTG PC.

Please go to your Monitoring Database Folder

In that folder there is one folder per day. (the date is the name of the folder)

Please check if there is one that has a date in the future.

If so, stop the PRTG services, delete the folder, than restart the services.

Created on May 20, 2013 5:36:04 AM by  Aurelio Lombardi [Paessler Support]



Perfect, solved the issue. Thank you. :)

Created on May 20, 2013 11:20:23 AM



hello, please i have the issue, but in Monitoring Database Folder, i don't seen one that has a date in the future... how can i fix this issue please

Created on Aug 15, 2020 5:34:27 PM




Are you also able to create new sensors successfully or are all sensors grey? If not already done, please try restarting the PRTG services once. If this isn't resolving the issue, please send us log files from your Core-Server as well as from the affected probe to [email protected], so we can troubleshoot further.


Created on Aug 17, 2020 10:56:35 AM by  Timo Dambach [Paessler Support]

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.