Hi
I've a PRTG deployment with approximatelly 800+ sensors. Since about 2 months I'm experiencing timeouts with the snmp sensors of any device, it's beacoming very anoying because sometimes those sensors go down and inmediately after go up again. Here are a few log examples:
01/03/2018 16:42:50 hostname1 SNMP System Uptime Uptime Up 55 d 01/03/2018 16:42:50 hostname1 SNMP System Uptime Uptime Warning No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003) 01/03/2018 16:37:36 hostname2 SNMP CPU Load CPU Load Up 7 % 01/03/2018 16:37:36 hostname2 SNMP CPU Load CPU Load Warning No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003)
As you can see here there is a Warning event for a non responsive snmp check, but inmediately after and with the same time signature there is a record with the snmp response.
This is just an example, I'm having hundreds of those a day.
I've increased the probe's host memory and cpu to discard a performance bottleneck. Any suggestions on were could be the problem or what can I check?.
Thanks,
Nicolas.
Article Comments
Hello Stephan
I'm not using SNMPv3. I'll try your suggestion to increase the SNMP delay and will let you know the result. Thanks,
Nicolas.
Mar, 2018 - Permalink
Hi Stephan
During this week I tried your suggestion to increase the SNMP delay but that didn't seam to resolve this problem. Now I've installed a new probe on another VM and moved most of the devices to it, as of this change the SNMP timeout error is gone. Could there be some problem hosting a probe on the same prtg server?. Thanks,
Nicolas.
Mar, 2018 - Permalink
Hi Nicolas,
Are you using SNMPv3 by any chance? Did you already try to increase the SNMP delay within the devices to see if it's a load issue?
Kind regards,
Stephan Linke, Tech Support Team
Mar, 2018 - Permalink