Prtg Network Monitor 21.0.x |top| May 2026

PRTG Network Monitor version , released in early 2021, served as a foundational update in the version 21 lifecycle, focusing on refining core stability and expanding sensor capabilities for cloud and hybrid environments. Key Features and Updates in PRTG 21.0.x iOS App Enhancements

System Requirements

PRTG 21.0.x increased the minimum hardware requirements compared to version 18 or 19. prtg network monitor 21.0.x

• Authentication: local accounts and LDAP/Active Directory integration with optional SSO (SAML 2.0/OAuth2) support.
• Authorization: RBAC with roles (Administrator, Read-Only, Operator, Viewer) and per-object permissions.
• Encryption: TLS for web UI, API, probe communication (mutual TLS for probe authentication recommended), encrypted storage of credentials (AES-256).
• Credential management: secure storage for SNMP community strings, device passwords, API keys with audit logging of changes.
• Audit logging: immutable audit trail of configuration changes, logins, and notification deliveries; retention policy configurable.

He then made a note in his ticketing system: Reprimand JThorpe regarding unauthorized software. PRTG Network Monitor version , released in early

The initial login and password are set to prtgadmin / prtgadmin. Data Storage He then made a note in his ticketing