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Upgrade path from v17.3.32.2478+ to newest version




We have an old installation that never got upgraded due to the changes in the maps section, which was ages ago. We would like to resume the upgrade, but the installation is very old.

What would be the correct upgrade path? Are there intermediate steps or can we upgrade to the newest version in one step?

Are there any other concerns that we should be aware of?

Thank you for your help.

manual-upgrade maps upgrade

Created on Sep 6, 2019 11:49:15 AM

3 Replies



Hi there,

The only intermediate PRTG has is the 16.x.21. Since then you always directly update to the latest version.

Just make sure that you have valid maintenance, so you can run the latest version and that you install .Net Framework 4.7.2 or .Net Framework 4.8 on all Remote Probes on the Core Server.

Best regards.

Created on Sep 6, 2019 11:58:42 AM by  Dariusz Gorka [Paessler Support]



Hello Paessler

We've just completed the upgrade from v17.3.32.2478+ to v19.4.53.1912+. The upgrade completed without any issues and all probes were also automatically updated in the process.

However - after the upgrade it started with the "1000+x Background cache recalculation" (as expected). Unfortunately the core server was rebooted before this process completed, but the cache recalcuation never seemed to continue.

As far as I see it this process was not finished and also not resumed - is this something that I should be worried about or can I manually initiate it to make sure that it is up to date?

Thank you in advance!

Created on Nov 6, 2019 12:36:51 PM



Hi Jesper,

You can restart the cache recalculation via the webinterface under "Setup | System Administration | Administrative Tools". In here you have to click on Go! in the Recalculate PRTG Graph Data Cache section.

Kind regards

Created on Nov 6, 2019 1:21:10 PM by  Marijan Horsky [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.