https://bugzilla.samba.org/show_bug.cgi?id=14713 --- Comment #17 from Steve French <sfrench@xxxxxxxxx> --- In both trace you sent (seal and not specifying seal on the mount) you can see the server is requiring encryption (unless you mount with smb2.1 or earlier). See attached screenshot -- You are receiving this mail because: You are the QA Contact for the bug.