It’s definitely on the V3 CREATE call that throws the error. I’ve seen that there are V4 clients for Windows, but haven’t tried any of them yet – is there one you believe would work? Thanks, Steve -- Stephen Jones Group Lead / Principal Software Engineer The MITRE Corporation Phone: (781)271-2517 Email: srjones@mitre.org<mailto:srjones@mitre.org> From: Malahal Naineni <malahal@gmail.com> Date: Friday, October 12, 2018 at 10:22 AM To: "Jones, Stephen R." <srjones@mitre.org> Cc: "support@lists.nfs-ganesha.org" <support@lists.nfs-ganesha.org> Subject: Re: [NFS-Ganesha-Support] Copy permission error On Thu, Oct 11, 2018 at 7:38 PM Jones, Stephen R. <srjones@mitre.org<mailto:srjones@mitre.org>> wrote: Hello all; With this setup, I’m able to copy most files from the windows system to the share without a problem. However, if the file on windows has the ‘Read-Only’ attribute set, the copy fails with a permission denied error, and looking at the Wireshark trace I’m seeing an NFS3ERR_ACCES error. Is there something I can set in the NFS-Ganesha config file to resolve this issue? Hmm, is it possible that the windows NFS client is creating the file, setting attributes to read-only on the destination file an then doing the writes which fail? Maybe, try NFSv4 and see if it works better! Regards, Malahal.