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Not able to add a SNMP traffic probe




I'm trying to add a SNMP traffic probe on one of my switch using the auto-discovery and every time I got the -2003 error. If I try the SNMP tester everything is fine and I check twice that my switch had the same parameter as the one used with the tester. My switch is based on a parent settings for SNMP and almost all stuffed. I have other switch based on the same parent and everything is fine.

Can you help me on that?



prtg snmp snmp-sensor

Created on Feb 2, 2011 6:36:58 PM

3 Replies



Dear Richard,

can you add a SNMP Uptime sensor to the switch? Is there any firewall that could be disabled for a test?

Best Regards.

Created on Feb 3, 2011 12:37:50 PM by  Torsten Lindner [Paessler Support]




I was able to add the SNMP Uptime sensor, but I always get this error:

No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (erreur SNMP # -2003)

For the kind of switch that I used (RuggedCom RS900) there is no parameter to set or not a firewall. I used the SNMP Tester and I was able to see all devices connected to this switch, so the SNMP setting seems to work well.

Just to do a test I add the SNMP Uptime sensor to another switch and all was OK.

Thanks for your help,


Created on Feb 9, 2011 1:47:09 PM



Is there any (personal) firewall on the PRTG PC/Server, that you could disable?

Created on Feb 10, 2011 5:00:42 PM by  Torsten Lindner [Paessler Support]

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