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

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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 by  Florian Weik [Paessler Support]



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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 by  Florian Weik [Paessler Support]

Last change on Aug 10, 2021 10:11:20 AM by  Florian Weik [Paessler Support]



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