Hello, one of the apps I am using crashes when talking to samba 4.17+ but doesn?t crash when running against 4.16. The app is not written by myself, and a code snippet that the developer and I suspected tob e the culprit runs without any issues. I?d be interested in queries performed by that application and potential differences, and was searching for ?samba query log?. I got the hits: https://www.samba.org/samba/docs/using_samba/ch12.html https://www.spinics.net/lists/samba/msg161127.html but nothing current and official. Did that patch enter any release? What other options do exist? And anyone aware of changes between 4.17 and 4.16 that might cause a .NET application to fail? Thanks, Joachim