Hello Everyone I am using samba 4.20.5 with debian backport. I have FortiClientEMS tool which connects to LDAP to get data. FortiClientEMS version 7.0.x worked with Samba without any problem. Unfortunately newer version 7.2.x no longer works. I noticed while examining Wireshark traffic that version 7.0.x connects using authentication: sasl (3). New version 7.2.x authentication: ntlmsspNegotiate (10) and LDAP terminates the connection. Can I configure Samba to solve my problem? I also tested on Samba version 4.17.x. I checked on Windows Server 2012 and 2022 and this problem does not occur here. Best regards, Tomasz ?widerski