Windows 10: W10 pro update 1709 shares cannot be accesed FROM NAS Server (Samba)

  1.    22 Nov 2017 #1

    W10 pro update 1709 shares cannot be accesed FROM NAS Server (Samba)

    Hi folks

    it's definitely a windows update problem with version 1709.

    FROM Nas server -- cannot access windows shares vua samba anymore -- says timeout on xxxxx - and this comes up immediately !!!

    other windows machines have no problem.

    Accessing the server FROM windows is OK but I need to access windows FROM the server as well (auto backups from server).

    Any suggestions folks.

    I actually didn't want this last update but some how windows set to auto update.

    version is W10 pro 1709 build 16299.64

    SAMBA on server running just fine -- TV's, phones etc can all access OK. SAMBA V4 (latest) being used on server.

    Note Windows TO server works, Windows FROM server fails. I have 2 NAS servers and same problem -old Windows works but not the latest.

    Tested also disabling BOTH sets of firewalls and Windows has all the allow remote access stuff enabled.

    Is there some type of local security policy default enabled that wasn't there before. ??

      My ComputerSystem Spec

  2.    22 Nov 2017 #2

    I think you need to accept the new certificate that is all. Like if you update a VM then RDC will fail as certitficate has changed after update of Windows version.

    For SAMBA I never had a problem - I know you always do with every upgrade - but since about Windows 8 I use this and never change it
    # /etc/fstab: static file system information
    # <file system> <dir>   <type>  <options>       <dump>  <pass>
    UUID=b023985e-c449-4301-ae92-582e6d3c39b3       /               btrfs           defaults,compress              0 0
    //        /mnt/MacBook cifs credentials=/root/secret.txt,iocharset=utf8,uid=1000,gid=1000,file_mode=0777,dir_mode=0777,nounix,nofail,x-systemd.device-timeout=1 0 0
    with the "/root/secret.txt" being in plain text:
      My ComputerSystem Spec

  3.    22 Nov 2017 #3

    I got the same problem with my Buffalo NAS in W10 1607 and SMB 1.0 disabled. Enabling did the job here.
    Can it be that in W10 pro 1709 build 16299.64 SMB 1.0 CIFS File sharing Support is disabled.
    Can it be that your Samba needs SMB 1.0.
    Try an Firmware update of your NAS or try to enable SMB 1.0 again in W10 1709.
      My ComputerSystem Spec

  4.    22 Nov 2017 #4

    There was also a security worry about using SMB 2 in 1709 and it was disabled by default. Perhaps that was it.

    Guest access smb2 disabled by default in windows 10

    I would say though that connecting using CIFS it has NEVER been a problem for me connecting from Linux to Windows. Jimbo seems to get a problem every upgrade so perhaps his security requirements are more extreme than mine.

    I'm pretty lax - I even store my password in plain text (although root only access).
      My ComputerSystem Spec

  5.    22 Nov 2017 #5

    I have had strange issues accessing Samba shares on C drive from android that worked fin before 16299. I can access share on non OS drives without any issues. Interestingly, I can access public folders on c drive ok but no others. See this post

    Cannot access C drive from android devices since upgraded to 16299 - Windows 10 Forums

    Pretty sure there is a bug somewhere. Can you access non OS drives?
      My ComputerSystem Spec

  6.    22 Nov 2017 #6

    cereberus said: View Post
    Can you access non OS drives?
    Now you mention it I've not tried. I only share Downloads from Windows which I have on C. I'll try sharing another partition or drive and see.
      My ComputerSystem Spec

  7.   My ComputerSystem Spec

  8.    12 Dec 2017 #8

    Try this
    Run gpedit.msc
    Computer Configuration>Administrative Templates>Network>Lanman Workstation
    Enable insecure guest logon = enabled
    The 1709 update has introduced a policy on Pro and higher version to disable the guest account by default
      My ComputerSystem Spec


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