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

After updating to PRTG 21.3.69, my SNMP sensors show SNMP error 2011

Votes:

1

After updating to PRTG 21.3.69, my SNMP sensors show the Down status and SNMP error 2011. What is causing this issue?

error prtg sensor snmp

Created on Aug 9, 2021 11:37:39 AM



1 Reply

Accepted Answer

Votes:

1

This article applies as of PRTG 21.3.69

SNMP sensors show SNMP error 2011 after PRTG update

Issue: SNMP sensors show the Down status and SNMP error 2011. Summary:

  • SNMP sensors show the Down status
  • Sensors show error message "Could not create SNMP Session (-3000)-2011"
  • Probe.log contains entry "Error init SNMP, Windows error code 126"

Our investigation showed that this is caused by the fact that the latest updates for the Visual C++ Redistributable Package are missing on the probe system.

Solution:

  1. Update the Visual C++ Redistributable Package on the corresponding probe systems.
  2. Restart the affected probe systems afterwards.

Created on Aug 9, 2021 2:07:50 PM

Last change on Aug 9, 2021 2:07:50 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.