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

PRTG (SNMP error # -2003)




When i try to get the SNMP sensor to work i keep getting (SNMP error # -2003), I have tried diffrent SNMP versions but i get the same problem all the time. Hopfully someone can help me out here or point me in the right direction!

With kind regards,

Dave Nienhuis The Netherlands

2003 prtg snmp

Created on Dec 2, 2014 12:00:40 PM

1 Reply



Hey Dave,

there is the same question on october 2010 with an good idee to deal with.

You can try to figure out the problem with the paessler snmp tester. It is a Windows-Software what can be installed on the same host, and on other systems. With this software you be able to check the snmp requests.

I refer to this article: https://kb.paessler.com/en/topic/9763-prtg-snmp-error-2003

If this won't help you, try this one, debugging and fixing snmp problems with and via PRTG: https://kb.paessler.com/en/topic/46863-my-snmp-sensors-dont-work-what-can-i-do



Created on Dec 2, 2014 1:58:45 PM

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.