Hi,
SNMP not work 
in MK 5.22
/snmp print
enabled: yes
contact:
location:
engine-id:
trap-target:
trap-community: RTB_SNMP
trap-version: 1
trap-generators:
/snmp community print
Flags: * - default
NAME ADDRESSES SECURITY READ-ACCESS
0 * RTB_SNMP 0.0.0.0/0 none yes
Firewall is disabled
snmpwalk -v2c 172.30.131.36 -c RTB_SNMP
Timeout: No Response from 172.30.131.36
Idea?