PRTG cluster

Hello,

You need to activate your server as failover node in order to avoid the "has already been activated" error message. Please configure your cluster as explained here: https://www.paessler.com/support/how-to/failover-cluster. Make sure your new server is joined to the cluster as failover and head to "Setup > License Information > Refresh Information" afterwards.

But do I have to first make my primary server the master of the cluster, and then insert the secondary into the cluster? That way the message that the key is already being used will not appear? Or do I have to download the same version of my PRTG main, with a generic key, insert it in the cluster and then update the key to the same one used in the main?

You need to first make your primary server the master node of the cluster. After adding the failover to your cluster afterwards, you should be able to activate it as failover node (it does not matter if you were using a generic key before). If you cannot get it to work, feel free to send us screenshots of the issue and license information to [email protected] so we can take a closer look.

Thank you so much guys! One more doubt. It is recommended that the same version of PRTG be used on both servers in the cluster, right? How could I install the same version of my PRTG on the secondary server. With the same installer that is on my primary server? If so, wouldn't there be conflict between license keys? Or is there any way to download this version elsewhere?

Yes, using the same version on both servers is not only recommended but necessary (as different PRTG versions wouldn't be able to connect to each other).

For this you can copy and use the installer called "PRTG Installer (Currently Installed Version).exe" which you can find at "C:\Program Files (x86)\PRTG Network Monitor\PRTG Installer Archive" on your primary server by default.