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
1 reply

Why do I get DoS alarms on my QNAP?

ddos prtg qnap system-information

By Brandy Greger [Paessler Support]
Views: 8902, on Jul 13, 2018 7:33:30 AM

0 votes
1 reply

How can I customize ports for core-probe connections used by PRTG?

core-probe-connection port prtg reghack registry

By Martina Wittmann [Paessler Support]
Views: 41335, on Jun 25, 2015 3:22:31 PM

0 votes
1 reply

Why can’t I save my PRTG password in Google Chrome?

browser certificate chrome credentials login password prtg ssl-certificate

By Gerald Schoch [Paessler Support]
Views: 11491, on Oct 31, 2014 2:35:39 PM

0 votes
1 reply

How can I increase memory for Remote PowerShell?

memory powershell prtg remote-powershell

By Gerald Schoch [Paessler Support]
Views: 21758, on Oct 28, 2014 2:28:58 PM

0 votes
1 reply

SSL Certificate Signed Using Weak Hashing Algorithm

prtg snmp wmi

Views: 1471, on Jun 27, 2022 3:18:37 AM

0 votes
3 replies

PRTG upgrade to latest version

latest prtg upgrade

Views: 11300, on Jun 15, 2022 11:07:48 AM

0 votes
3 replies

Sudden increase in the values of "Threads" and "Raw Data Buffer"

core-health-sensor increase raw-data-buffer sudden threads

Views: 1455, on Jun 8, 2022 9:25:01 AM

4 votes
23 replies

How can I use the PRTG Application Programming Interface (API)?

api css custom-notification custom-script-exe custom-sensor important mini-probe prtg script web-interface

By Daniel Zobel [Product Manager]
Views: 262135, on Feb 5, 2010 2:47:46 PM

1 vote
9 replies

PRTG blocks port 80 although I'm using SSL on port 443. How to free port 80?

port prtg redirect registry ssl web-interface

By Daniel Zobel [Product Manager]
Views: 112589, on Jun 8, 2010 9:06:15 AM

0 votes
1 reply

What to do when I see a CreateUniqueTempDir() error message for my HTTP Full Web Page sensor?

chromium error http http-full-web-page prtg tempdir webkit

By Daniel Zobel [Product Manager]
Views: 78232, on Sep 5, 2012 7:40:37 AM

0 votes
10 replies

How can I send SMS text message notifications via a modem or a mobile phone with PRTG?

gsm howto notifications pagegate prtg sms software text-message

By Daniel Zobel [Product Manager]
Views: 187170, on Feb 3, 2010 10:24:31 AM

0 votes
1 reply

How much does Amazon charge for using Amazon CloudWatch sensors in PRTG?

amazon cloudwatch help prtg

By Daniel Zobel [Product Manager]
Views: 83447, on Jun 19, 2012 9:08:17 AM

1 vote
24 replies

The term "down"

down prtg states

Views: 5863, on May 21, 2014 12:51:54 PM

0 votes
1 reply

Where do I find available Google Analytics metrics?

analytics error-messages google google-analytics help metrics prtg

By Daniel Zobel [Product Manager]
Views: 80102, on May 3, 2012 3:12:10 PM

0 votes
1 reply

Cluster: How do I convert a (temporary) failover master node to be the primary master node?

cluster clustering-convert failover-master primary-master prtg

By Daniel Zobel [Product Manager]
Views: 82544, on Apr 19, 2012 11:25:02 AM