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
7 replies

Monitor Windows Server Backup

backup backup-monitoring event-log eventlog

Views: 10057, on Jul 8, 2016 2:08:43 PM

1 vote
12 replies

How can I get PRTG to recognize Cisco switches in stack that utilize only 1 IP address?

cisco-2960 devicetemplate paetemplate prtg stack

Views: 39106, on Sep 12, 2012 3:54:14 PM

0 votes
10 replies

Dell Compellent Monitoring

compellent dell devicetemplate paetemplate prtg15 snmp-custom-sensor

Views: 20143, on Jan 10, 2018 5:26:02 PM

0 votes
3 replies

Monitoring temperature from Universal IO port of APC AP9631

apc-ups prtg snmp

Views: 18087, on Nov 18, 2016 4:51:46 AM

1 vote
4 replies

Why don't I get notifications from PRTG? What are the Top 5 reasons for notification problems?

configuration debug error notifications prtg

By Daniel Zobel [Product Manager]
Views: 132008, on Feb 15, 2010 3:53:17 PM

0 votes
1 reply

How do I enable alerts?

alerts notifications prtg

Views: 843, on Feb 21, 2020 11:33:57 AM

0 votes
1 reply

PRTG Notification of machine being restart

prtg sensor snmp

Views: 4097, on May 22, 2016 6:57:25 AM

0 votes
1 reply

Is it possible for alerts to stay as red even if sensor recovers?

prtg sensor snmp

Views: 823, on May 19, 2020 4:20:33 PM

0 votes
1 reply

Send Email when Service is down

prtg services wmi

Views: 3223, on Jun 28, 2017 11:02:47 AM

0 votes
1 reply

How to change the limit of Disk Free sensor with GigaByte?

disk-free prtg prtg-network-monitor

Views: 2786, on Dec 26, 2018 1:33:01 AM

0 votes
1 reply

How are IP SLA sensors read in detail?

behaviour ip-sla prtg

Views: 1316, on Sep 25, 2019 3:17:17 PM

0 votes
1 reply

setting limits on all sensors of one type

configuration howto limits prtg

Views: 3764, on Feb 27, 2014 5:29:43 PM

0 votes
2 replies

Mark a file sensor as DOWN when file size beyond a threshold

file prtg sensor size

Views: 3923, on Jul 1, 2015 8:43:12 PM

0 votes
3 replies

Custom sensor to alert if number of sensors with a particular tag are down

counter custom-sensor prtg tags

Views: 2652, on Mar 27, 2015 4:57:29 PM

0 votes
3 replies

monitor a folder on C: drive

prtg snmp windows

Views: 3843, on Jun 10, 2014 2:19:08 PM