Symptom 1: Message KN3PN011 with RC(112) and KN3PN022 in RKLVLOG

When you look in RKLVLOG you see these messages:

KN3PN011 ERROR IN DIALOG KN3DPINI - MODULE(KN3AFOMN) RC(112) SENSE(E3025A02) 
LU() APPL() USERID() INIT ERROR
KN3PN022 IBM® Z OMEGAMON® AI for Networks INITIALIZATION FAILURE - 
UNABLE TO OPEN CNM ACB. ACBERFLG(5A) 
KN3PN007 IBM® Z OMEGAMON® AI for Networks INITIALIZATION ERROR

If you find these messages, verify that the major node you identified in the Configuration Tool is in VTAMLST and is active. If the IBM® Z OMEGAMON® AI for Networks monitoring agent is running in the Tivoli® Enterprise Monitoring Server address space, the CNM application used to collect the data is defined in VTAM® major node CTDDSN. If the IBM® Z OMEGAMON® AI for Networks monitoring agent is configured to run in its own address space, the CNM application used to collect the data is defined in VTAM major node CTDN3N. These major nodes are generated by the Configuration Tool and stored in &rhilev.&midlev.&rtename.RKANSAMU. See the IBM® Tivoli IBM® Z OMEGAMON® AI for Networks: Planning and Configuration Guide for more information.

To verify if a VTAM major node is active, enter this z/OS® command:

D NET,ID=major_node_name,E