I have Monitor Servers SNMP and DNS Service by Opmanager .

My SNMP , DNS ,HTTP , NFS Servers Service is START.

but  when i add SNMP , DNS , HTTP , NFS , Oracle service to Service moritors Tab of  Opmanager for monitor this services, 

HTTP , NFS , Oracle Services status are ok.

Why  The Opmanager show Alert SNMP Service is Done and DNS Service is Done ???