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Good morning everyone
How can I resolve the following error "[exit code: 3] [message: UNKNOWN: SNMP Table Request: Timeout]", when monitoring a Windows server with OS-Windows-SNMP-custom.
Or even better what can I go and check to correct the error?

Hello @NicolaM,

This error means that either:

  • the network flow between your central/poller and the windows machine is not open
  • the SNMP community is not correct
  • the SNMP agent is not started on your windows machine 

 

After checking these points, you can test if you get an answer with a snmpwalk:

snmpwalk -v <VERSION> -c <COMMUNITY> <IP>

 If the tool is not installed, you can install it with:

yum install net-snmp-utils

 

Regards.

I checked the service, but it seems to me configured correctly, even trying from the Central it continues to give me Timeout: No Response from .......

Is the target Windows machine reachable from the Central on the UDP/161 SNMP port ? You may have firewall rules blocking the connexion.

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