Prtg Network Monitor 21.0.x //free\\ Jun 2026

Version 21.0.x deprecated TLS 1.0 and 1.1 for the PRTG web server. Only TLS 1.2+ is allowed by default. Weak Diffie-Hellman ciphers were removed.

: The SNMP Windows Service v2 sensor was rewritten for better maintainability and reliability. Getting Started Release Notes - PRTG Network Monitor - Version History prtg network monitor 21.0.x

PRTG is an agentless, all-in-one monitoring tool designed to oversee entire IT environments—from local hardware like routers and switches to cloud services and virtual machines—through a single centralized dashboard. Hands-on review: Paessler PRTG Network Monitoring Tool Version 21

: Improved reliability for the advanced Veeam sensor to handle "idle" or "none" results without throwing errors. New Lookups prtg network monitor 21.0.x

Result: Error. Command timeout.