SMB connection drops after ~half hour of no use

I’m experiencing the same thing 150d described. My connections in applications reading files, like a Nuke read node, will randomly error out. Reloading the file restores it immediately.
I get the same behavior in windows explorer too, anything open on my mapped share will just close out.
Still investigating the cause.
TrueNAS-13.0-U6.7
Windows 11 clients