Service use SNMP plugin is pending

all service apply on router use SNMP plugin is pending help please
although command : /usr/lib64/nagios/manubulon/ -H -L sha,aes -X Encr -l Nagios-USER -n Vlan77 -x Auth
it’s result : Vlan77:UP:1 UP: OK
but pending on

and what’s happen if you press the Check now button?

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press more than one click but no thing happen

Check the Icinga 2 log file for any abnormalities.

Try to run the command as the icinga2 daemon user, to check if there is a permission problem on the check plugin.

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Please also post command and service definition, including imports.

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