samba - Oct 2019 - Subject=Re: Subject=Re: Mac Clients Disconnect with: source3/smbd/service.c:1050(close_cnum) closed connection to service data

Thank you for pointing that out, torch!

And thanks for the update, Rowland.

I'm trying both versions out on different servers.

As an update, an Ask Different user suggested I use Wireshark to get more
information on what was going on and learned the error
is: ?STATUS_NETWORK_SESSION_EXPIRED (0xc000035c)?

Here's what the exchange looks like when the share is dropped:
https://i.stack.imgur.com/eiYxQ.jpg

And here is the full history of the issue:
https://apple.stackexchange.com/q/373563/6209

Thanks for all your work on the Samba project. It's been an incredibly
huge, key component of our department for many years. This has been made
incredibly clear now that we're not getting along so well.

All the best,
Louis