Slow SMB transfer speed (with Win11, Win10 works just fine)

[prez02]

@SolarAstra

Directory Opus instead of Windows Explorer

The second time a different file copy program has been the culprit, in this thread is has been teracopy.

Copying a file on TrueNAS goes via the attached PC - why?

If I want to make a second copy of a file on a TrueNAS server the file is moved to the attached PC and then sent back to TrueNAS, which takes a long time compared to a file being copied just within the TrueNAS machine - why is this and can it be avoided?