Fix: SNMP error request timed out [Tested solutions]

Milan Stanojevic
by Milan Stanojevic
Windows & Software Expert
Milan has been enthusiastic about PCs ever since his childhood days, and this led him to take interest in all PC-related technologies. Before joining WindowsReport, he worked as a front-end web developer. Read more
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  • SNMP error request timed out is a network error, but there’s a an easy way to fix it.
  • The best way to deal with network errors is by using specialized network monitor software.
  • You can fix this issue by ensuring that your settings, such as port number, are correct.
  • If you’re getting an SNMP timeout error, you can always increase the timeout time.
snmp error request timed out
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If you’re a network administrator, you know that certain errors such as SNMP error request timed out can appear from time to time.

Errors such as this one can disrupt your network and cause various issues, so in today’s guide, we’re going to show you how to fix this error once and for all.

How can I fix the SNMP error request timed out error?

1. Use specialized software

monitoring software snmp error request timed out

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Overall, Paessler PRTG offers great features, and it should be able to help you fix SNMP error request timed out and other network errors with ease.

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2. Check the settings

settings snmp error request timed out
  1. Check the community’s name. For SNMP to work properly, the community string in the message must match the community’s name.
  2. Check the listening port on the agent. By default, this port should be UDP 161, but it might be different on your configuration.
  3. Increase the timeout time. By default, the timeout is set to 5 seconds, but you can increase the timeout with SnmpPDU.setTimeout(int time_in_ms) method or setTimeout(int time_in_sec) of SnmpTarget / SnmpRequestServer method.
  4. Make sure that the switch responds to ICMP (ping) requests).

3. Use the tcpdump command

error code 0xc0000034 command line
  1. Open two Control Server CLI windows.
  2. In the first one run the following command. Be sure to replace the IP address with the address of your switch: tcpdump -nni eth0 host <ip address> and port 161
  3. In the second window run the following command: snmpwalk
  4. After the snmpwalk is completed, press CTRL-C to stop tcpdump.

Depending on the results, you need to do the following:

  • If the SNMP traffic isn’t reaching the switch, check the network path.
  • In case the traffic is reaching the switch, but the switch isn’t responding, check the switch.
  • In case the tcpdump doesn’t show any packets, verify that the SNMP traffic is reaching the switch.

Fixing the SNMP error request timed out error isn’t an easy task, but we hope that this guide helped you fix this issue. Did you find a different solution on your own? Let us know in the comments below.

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