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Thread: Can't copy large files from Win10 to Samba share

  1. #11
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    Default Re: Can't copy large files from Win10 to Samba share

    I would try if increasing the samba log level gives more relevant details.

    If you want to do a deep-dive there is Wireshark.

    Capture the traffic at the receiving side and/or transmitting side and ignore everything apart from just before the stall happens.
    Although it will not give exact information it can give pointers on where to look at but it requires insight in the protocols.

  2. #12
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    Default Re: Can't copy large files from Win10 to Samba share

    Managed to move the remote machine onto my local network (long cable!) and so removed WireGuard from the configuration and all was well. So It seems to be a wireguard issue ........... but only effecting a samba server and not a win7 server

  3. #13
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    Default Re: Can't copy large files from Win10 to Samba share

    Quote Originally Posted by JulinaB View Post
    Managed to move the remote machine onto my local network (long cable!) and so removed WireGuard from the configuration and all was well. So It seems to be a wireguard issue ........... but only effecting a samba server and not a win7 server
    Searching "wiregaurd" and "samba" turns up a lot of similar reports.
    openSUSE Leap 15.3; KDE Plasma 5

  4. #14
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    Default Re: Can't copy large files from Win10 to Samba share

    Quote Originally Posted by deano_ferrari View Post
    Searching "wiregaurd" and "samba" turns up a lot of similar reports.
    Resorted to NFS to see if that would work any better but sadly not. Again the whole link gets blocked and then it times out.

  5. #15
    Join Date
    Sep 2012
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    Default Re: Can't copy large files from Win10 to Samba share

    Quote Originally Posted by JulinaB View Post
    So It seems to be a wireguard issue
    MTU problem?

    https://keremerkan.net/posts/wireguard-mtu-fixes/

    Just the first search hit ...

  6. #16
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    Default Re: Can't copy large files from Win10 to Samba share

    Quote Originally Posted by arvidjaar View Post
    MTU problem?

    https://keremerkan.net/posts/wireguard-mtu-fixes/

    Just the first search hit ...
    That's exactly where I am now .......

    Irrespective of the file size it stalls after ~7MB. Is that a magic number or just a random buffer size?

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