Prtg Network Monitor 21.0.x !!hot!!
It represents the last of the "truly on-premises, simple to license" versions. If you are currently running 21.0.x successfully, there is no urgent reason to leave it—provided you have layered network security controls around it.
For bandwidth analysis.
A chaotic device tree makes managing alerts difficult. PRTG uses a hierarchical structure where configurations, credentials, and notification schedules pass down from parent groups to child devices.
Improved handling of SNMP v3 requests allowed for higher scalability and more simultaneous requests. Auto-discovery: prtg network monitor 21.0.x
During the setup, configure a rather than relying on the default self-signed certificate.
Probes execute the actual monitoring work by running checks against target devices.
Which do you need to monitor (e.g., VMware, Cisco, AWS, Windows)? It represents the last of the "truly on-premises,
sensor was enhanced to allow selecting single bits and calculating "Delta" values for metrics like power consumption. Core Performance Reporting Speed: PRTG 21 significantly increased the speed of PDF and HTML report generation
Improved polling for cloud-native metrics like cost and performance latency.
The 21.0.x release cycle added several native sensors that previously required custom scripts or third-party plugins: A chaotic device tree makes managing alerts difficult
PRTG Network Monitor is a comprehensive network monitoring solution developed by Paessler AG, a German-based company with over 20 years of experience in the field of network monitoring. PRTG is designed to monitor and analyze the performance and availability of network devices, servers, applications, and services in real-time. The solution uses a combination of SNMP, WMI, and other protocols to collect data from network devices and provides a web-based interface for configuring, monitoring, and analyzing the data.
| Platform | Key Characteristics | | :--- | :--- | | | All-in-one, agentless, sensor-based licensing, user-friendly, scales from small to large. | | SolarWinds NPM | Highly powerful, extremely granular, known for depth, higher cost, steeper learning curve. | | Nagios | Open-source core, very flexible & customizable, highly manual configuration, steep learning curve. | | Zabbix | Open-source, enterprise-focused, powerful, requires significant setup and expertise. | | Auvik | Cloud-based, automated network discovery, simple, focuses on network visibility and management. |
PRTG uses "Sensors" as its licensing metrics and functional building blocks. A sensor monitors one specific aspect of a device. For example: One ping check on a switch is . Monitoring CPU utilization on a server is one sensor .

