impossible to access network share from system context

  1. Posts : 2
    Win7, 8.1, 10, 2008R2, 2012R2, Ubuntu
       21 May 2016 #1

    impossible to access network share from system context

    For a number of reasons I need the system context to be able to access and read certain public network shares.
    These shares are located on a samba server, and are public read to everyone. Environment is WORKGROUP.
    My Win10 machine can ping the server sharing the folder, and can properly read the folder content unless the action runs under the user nt authority\system (the one I need to run the action).
    The machine has already been patched with the change
    [HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters] AllowInsecureGuestAuth REG_DWORD 1
    but this seems to have no effect on this specific issue.
    The machine is a fresh install, and anyway this behaviour is happening systematically
    (and since a few weeks). For running processes under system context I use
    PSexec.exe -i -s cmd
    by Mark Russinovich
    In Win7 the behaviour is as expected (the result of the red cmd is the same than the yellow cmd).
    In my specific case it does not make much sense to create a user on the samba server, because shares are absolutely public.
    Is anybody having a similar issue??
    Click image for larger version. 

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      My ComputerSystem Spec

  2. Posts : 2
    Win7, 8.1, 10, 2008R2, 2012R2, Ubuntu
    Thread Starter
       23 May 2016 #2

    Update appears to be samba related.
    I will post more information as soon as it will be clarified.
    Last edited by freesbee; 23 May 2016 at 12:46. Reason: additional information
      My ComputerSystem Spec


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