I was trying to work out which CHLAUTH rule was blocking my client from connecting to my queue manager.
I used Morag’s post I’m being blocked by CHLAUTH – how can I work out why? and the command
DISPLAY CHLAUTH(channel-name-from-message) MATCH(RUNCHECK) ALL
and I found which CHLAUTH rule was being used.
To find CHCKCLNT(ASQMGR), issue DIS QMGR CONNAUTH, then use the connauth value in DIS AUTHINFO(value) CHCKCLNT .