Prtg Network Monitor 21.0.x

If you are currently evaluating or configuring your monitoring environment, let me know: What is your or infrastructure size?

With version 21, Paessler began decoupling the administrative tools from the web browser.

PRTG 21.0.x changes the underlying database schema. Once you upgrade, you cannot downgrade easily. You must take a full backup of the \ProgramData\Paessler\PRTG Network Monitor\ directory. prtg network monitor 21.0.x

Patched in early 21.1 versions, this flaw allowed attackers to verify the existence of files on the web server by manipulating screenshot context paths.

Continued refinement of communication protocols ensured that data between remote probes and the core server remained secure, with improved support for TLS encryption. 2. New Sensor Capabilities and Refinements If you are currently evaluating or configuring your

Collect data from devices via various protocols (SNMP, WMI, SSH, REST API).

To get the most out of PRTG 21.0.x, it is essential to follow recommended maintenance and optimization steps. Once you upgrade, you cannot downgrade easily

These improvements directly benefited users, making the product more efficient for large deployments and mixed (IT/OT) environments.

If you are evaluating the software, choose the trial license option, which grants access to unlimited sensors for 30 days. Step 3: Fast Configuration Wizard

SNMP monitoring was refined extensively: