In a fresh check raw 1.6.0p11 installation, for a lot of hosts I see this error:
CRIT - no unmonitored services found, no vanished services found, no new host labels, [snmp] Cannot fetch system description OID .188.8.131.52.184.108.40.206.0. This might be OK for some bogus devices. In that case please configure the ruleset “Hosts without system description OID” to tell Check_MK not to fetch the system description and system object OIDs.
But when I edit the services and do a full scan, it does not find anything new there.
Any ideas where to find this “Hosts without system description OID” ruleset, and what should be configured there?