Before commenting read Forum rules
Don't comment the topic if you have a new question.
You can create a new topic selecting correct category from Gurux Forum and then create a new topic selecting "New Topic" from the top left.
Forums
int CGXDLMSClient::ParseApplicationAssociationResponse(
CGXByteBuffer& reply)
at last I think should set
m_Settings.SetConnected((DLMS_CONNECTION_STATE) (m_Settings.GetConnected() | DLMS_CONNECTION_STATE_DLMS));
befor
equals = challenge.Compare(value.byteArr, value.GetSize());
on line 1040
https://github.dev/Gurux/Gurux.DLMS.cpp