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PRTG - SNMP error # -2003

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I´m a rookie with PRTG, after install and scan my network I face so many alerts showing something like:

" (003)ixp0 Down No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003 "

Does anyone idea how to fix or what it means?

alert error snmp

Created on Oct 6, 2010 1:39:00 AM by  jr3151006 (0) 1



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Hello,

first of all please check if the SNMP Settings (Version, Community String, port, eventual authentication, etc.) are correct. Then please also check if PRTG (or the PC on which PRTG is installed) is allowed to send SNMP Requests to the device in case.

Please check this article as well: My SNMP sensors don’t work. What can I do?

You can also use our SNMP Tester to test the SNMP-Functionality on the target device(s).

Best Regards.

Created on Oct 6, 2010 12:35:27 PM by  Torsten Lindner [Paessler Support]

Last change on Sep 3, 2013 4:20:24 PM by  Gerald Schoch [Paessler Support]



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I wanted to let everyone know what I discovered about this error. Also the "No Such Name" snmp error.

On my Linux box, in my snmpd.conf file there was a setting like this:

view systemview included .1.3.6.1.2.1

This limits the systemview to OID's that fall under this section only. Apparently the OID's that PRTG wants to look at are not under this. I change it to:

view systemview included .1

and re-started snmpd. Now it works.

Created on Feb 11, 2011 11:58:53 PM by  Laurie Collins (100) 1 1



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hello i have similar problem when i try add custom sensor (oid 1.3.6.1.2.1.2.2.1.8.1) i have error: "No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003)"

when i test that oid in snmp tester i get right anserw in that case "1"

please help :)

Created on Mar 9, 2011 11:55:46 AM by  piotr_malek (0) 1



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Dear Piotr,

please double-check the settings made in the Tester and then in PRTG. If it works from the Tester and the Tester was used on the same machine as the PRTG Probe runs on, then the difference might be the user accounts under which both applications (respectively the PRTG Probe Service) run under.

best Regards.

Created on Mar 9, 2011 3:49:06 PM by  Torsten Lindner [Paessler Support]



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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.