What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general.

Learn more

PRTG Network Monitor

Intuitive to Use. Easy to manage.
More than 500,000 users rely on Paessler PRTG every day. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free Download

Top Tags


View all Tags

Knowledge Base overview

This is an overview of some of the topics. You can view other topics grouped by, activity, hottest, important, newest, views, votes.

0 votes
6 replies

IP on Blacklist hostname resolution problem

blacklist prtg snmp

Views: 13038, on Jun 5, 2012 12:39:04 PM

0 votes
1 reply

How do I add an event log sensor for a specific event?

event-id event-log prtg sensor windows wmi

By Aurelio Lombardi [Paessler Support]
Views: 13037, on Feb 22, 2010 10:18:28 AM

0 votes
2 replies

Ping same IP through different gateways

gateway mpls multiple nat ping prtg

Views: 13029, on Sep 25, 2015 4:09:48 PM

4 votes
3 replies

[IMPLEMENTED] Monitoring Nutanix

nutanix prtg snmp-sensor

Views: 13029, on May 4, 2016 7:19:17 PM

0 votes
7 replies

Unable to check revocation status

certificate revocation ssl

Views: 13011, on May 11, 2021 5:56:08 AM

0 votes
2 replies

What can I monitor with the IP-SLA Sensor of PRTG?

cisco ip-sla prtg qos

By Dirk Paessler [Founder Paessler AG] (11,025) ●3 ●6
Views: 13004, on Feb 2, 2010 12:55:35 PM

0 votes
1 reply

Why are my VMware sensors not working after upgrading to VCSA 6.5 U1?

prtg vmware vmwaresensor

By Brandy Greger [Paessler Support]
Views: 13000, on Feb 28, 2018 2:45:19 PM

0 votes
3 replies

SNMP error while trying to add a sensor

prtg qnap snmp

Views: 12983, on Dec 12, 2018 4:09:18 PM

0 votes
2 replies

Remove remote probe after being deleted

disconnected probe remote

Views: 12974, on Aug 6, 2012 3:46:42 PM

0 votes
9 replies

How can I monitor Zoom with PRTG?

prtg rest-api rest-custom video zoommeetings

By Brandy Greger [Paessler Support]
Views: 12966, on Apr 20, 2020 11:46:20 AM

0 votes
6 replies

Unable to discover interfaces for Fortigate firewall

auto-discovery fortigate snmp-traffic

Views: 12961, on Jul 6, 2011 12:50:45 PM

0 votes
1 reply

How do i monitor the broadcast and multicast traffic on interface level through PRTG Network Monitor

broadcast-muticast custom-sensor prtg

Views: 12952, on Jul 6, 2010 6:39:43 PM

0 votes
2 replies

No Such Name (SNMP error # 2)

custom-snmp-sensor snmp-error-223 snmp-sensor

Views: 12935, on Apr 30, 2013 12:46:40 PM

0 votes
1 reply

Connection could not be established (code: PE015)

code-pe015 pe015 wmi-sensors

Views: 12903, on Mar 22, 2019 5:23:36 AM

0 votes
6 replies

WMI Syntax is invalid

syntax windows-2008-r2-sp1 wmi-custom-sensor

Views: 12903, on Aug 17, 2011 7:05:02 PM