NetXMS Support Forum

We have a few nodes that stopped sending snmp traps.  We've tracked this back to when we upgraded from 6.01 to v6.1. Currently running v6.1.1. After setting debuglevel 9, we are seeing this in the logs:

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2026.04.30 12:05:03.065 *D* [snmp.trap          ] SNMPTrapReceiver: looking for SNMP security context for node 192.168.1.4 NWS-EWG5
2026.04.30 12:05:03.065 *D* [snmp.trap          ] SNMPTrapReceiver: received PDU of type 4 from 192.168.1.4
2026.04.30 12:05:03.065 *D* [snmp.trap          ] SNMPTrapReceiver: SNMP credential validation failed for trap from 192.168.1.4, dropping
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Attached are the XMS server and node snmp config settings.  It's just a pretty simple snmp v1 setup that's worked without issue for years.