our DLMS library discards response to RLRQ (Association release, i.e. Disconnect in Director) because of missing User info.
I have discussed that with our library provider:
The user information field is mandatory in RLRQ on ciphered association.
The user information field shall match that of AARQ (Deciphered values shall match).
I have included the snapshot from the green book. (see picture attached).
Could You add User info in RLRQ?