• SNMP Error Request Timeout is a network error, but there is an easy way to fix it.
  • The best way to deal with network errors is to use specialized network monitoring software.
  • You can work around this issue by making sure that your settings, such as the port number, are correct.
  • If you get an SNMP timeout error, you can always increase the timeout.

SNMP Error Request Timed Out

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If you are a network administrator, you know that certain errors can occur from time to time, such as the SNMP error request timeout.

Such errors can disrupt your network and cause various problems so in today’s guide we will 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

SNMP Error Request Timed Out

If you are having problems with your network, the Paessler PRTG software should be able to help you. The application works as a bandwidth monitor, making it easy to find bottlenecks in your network.

The software also supports database, application and cloud monitoring. You can also monitor your entire local network and there is full support for SNMP monitoring.

Overall, Paessler PRTG offers great features and should help you to fix SNMP error request timeout and other network errors with ease.

2. Check the settings

SNMP Error Request Timed Out

  1. Check the community name. For SNMP to work correctly, the community string in the message must match the community name.
  2. Check the listening port on the agent. By default, this port should be UDP 161, but it may be different in your configuration.
  3. Increase the waiting time. The timeout is set to 5 seconds by default, but you can increase the timeout using the SnmpPDU.setTimeout (int time_in_ms) or setTimeout (int time_in_sec) method of the SnmpTarget / SnmpRequestServer method.
  4. Make sure the switch responds to ICMP requests (ping).

3. Use the tcpdump command

SNMP Error Request Timed Out
  1. Open two control server CLI windows.
  2. In the first run the following command. Make 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 complete, press CTRL-C to stop tcpdump.

Depending on the results, you should do the following:

  • If SNMP traffic does not reach the switch, check the network path.
  • If traffic reaches the switch, but the switch does not respond, check the switch.
  • If tcpdump shows no packets, check if the SNMP traffic is reaching the switch.

Resolving the SNMP error request timeout error is not an easy task, but we hope this guide helped you solve this problem. Have you found another solution yourself? Let us know in the comments below.

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