CMK version: 2.4.0p19 CRE
I’m monitoring STULZ Clima (A/C) controller with four A/C units, but Checkmk only discovers two units. When I query the controller manually, it reports statuses for all four units, for example:
[root@vmdcheck ~]# snmpwalk -v 2c -c public -t 10 -r 3 10.1.1.22 .1.3.6.1.4.1.29462.10.2.1.4.4.1.1.1.1010
SNMPv2-SMI::enterprises.29462.10.2.1.4.4.1.1.1.1010.1.1.1 = Gauge32: 0
SNMPv2-SMI::enterprises.29462.10.2.1.4.4.1.1.1.1010.1.2.1 = Gauge32: 0
SNMPv2-SMI::enterprises.29462.10.2.1.4.4.1.1.1.1010.2.1.1 = Gauge32: 1
SNMPv2-SMI::enterprises.29462.10.2.1.4.4.1.1.1.1010.2.2.1 = Gauge32: 0
Output of “cmk --debug -vvn hostname”:
...
HostKey(hostname='klima', source_type=<SourceType.HOST: 1>) -> Add sections: ['hr_mem', 'if', 'inv_if', 'snmp_info', 'snmp_uptime', 'stulz_alerts', 'stulz_humidity', 'stulz_powerstate', 'stulz_temp']
HostKey(hostname='klima', source_type=<SourceType.HOST: 1>) -> Add sections: []
Received no piggyback data
Alerts 1.1 No alerts on device
Alerts 2.1 No alerts on device
Humidity 1.1 32.70%
Humidity 2.1 32.70%
SNMP Info Stulz GmbH Klimatechnik WIB 8000, WIB 8000 SNMP Interface, aircondition, local admin
State 1.1 Device powered on
State 2.1 Device powered on
Temperature unit air-1 24.4 °C
Temperature unit return air-1 24.7 °C
Temperature unit return air-2 24.1 °C
Uptime Up since 2026-01-29 06:57:03, Uptime: 49 days 7 hours
0 piggyback files for 'klima'.
So, it seems there might be a fault in a plugin. Is anybody monitoring these AC units? Has anybody noticed this behaviour? Any thoughts on what could be done?