Comment 11 for bug 1736940

Here I used windows 10 home to access a samba server on ubuntu 16.04. At the moment this snapshot was taken, I had wordpad on windows open a file in the ubuntu share (/home/ubuntu):

root@xenial-samba-smbstatus-1737534:~# smbstatus

Samba version 4.3.11-Ubuntu
PID Username Group Machine Protocol Version
------------------------------------------------------------------------------
479 ubuntu ubuntu 10.10.9.36 (ipv4:10.10.9.36:50694) Unknown (0x0311)

Service pid machine Connected at
-------------------------------------------------------
ubuntu 479 10.10.9.36 Sun Dec 17 17:24:06 2017

Locked files:
Pid Uid DenyMode Access R/W Oplock SharePath Name Time
--------------------------------------------------------------------------------------------------
479 1000 DENY_NONE 0x120089 RDONLY EXCLUSIVE+BATCH /home/ubuntu documento simples.odt Sun Dec 17 17:27:06 2017
479 1000 DENY_NONE 0x100081 RDONLY NONE /home/ubuntu . Sun Dec 17 17:26:47 2017
479 1000 DENY_NONE 0x100081 RDONLY NONE /home/ubuntu . Sun Dec 17 17:26:47 2017
479 1000 DENY_NONE 0x100081 RDONLY NONE /home/ubuntu . Sun Dec 17 17:26:47 2017

Username and group are correct (ubuntu/ubuntu), it's just the protocol version that is unknown. Same result as with smbclient from another ubuntu machine specifying the higher protocol version.

Would it be possible for you to attach your smb.conf configuration file?