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Troubleshooting steps if the network devices are being discovered as unknown
A device is listed unknown or shows a configuration error if:
A template is not associated
The SNMP credential entered is incorrect
The device is not responding to SNMP requests
If a template is not associated (the category is shown unknown),
associate an existing default device template
with the monitor. In case, you want to create your own custom device template,
add a device template
and then associate it.
If the entered credential is incorrect, associate another credential, after
If the configuration error persists even after associating a template (the association process requires a minimum of five minutes), the reason could be any of the below.
SNMP port is blocked
There exist firewall blocking requests to that device
The device does not allow the poller installed machine's IP to access SNMP.
check the SNMP reachability using MIB Browser.
Updated: 08 Jan 2018 02:57 PM
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