Hello All, Short story: I have a Synology NAS that has a NFS volume/path exported I have a couple of Raspberry PIs that can mount the NFS volume and read/write with no issues I have a brand new Raspberry PI 4 and an older Debian (stretch) install that mounts the NFS volume, but gets a permissions denied when trying to list the contents of the volume. Logged on as pi, sudo mkdir /mnt/syn sudo mount <NAS>:/volume1/nfs /mnt/syn ls -l /mnt d--------- 1 root root 268 Oct 13 14:24 syn is the result I get after mounting, if I were to unmount the volume (and these are the same values before mounting), I get the following from the ls -l command: drwxr-xr-x 2 root root 4096 Oct 13 14:02 syn As I see it, the chmod permission are changing when mounting the NFS volume. The strangest part to me is that it works on 2 other Raspberry PIs. I hope someone has some ideas I can try. Tim