I’m running TrueNAS Scale (latest stable) to provide a number of SMB shares. Access control is handled via ActiveDirectory integration. The drives have no power management configured and do not spin down (running 24/7).
Every once in a while, the shares seem to be unavailable momentarily: If I have a Explorer window open on a Windows client, the window just unexpectantly closes. (This is the same behaviour as if one would suddenly unplug a USB drive.) If I reopen Explorer immediately, it connects to the share just fine. This seems to happen totally at random, sometimes multiple times a day. Frequently enough to be annoying, not often enough to be a serious problem.
Has anybody else seen this? Is there a “keep-alive” or something like that that I could experiment with?
It’s different clients, both Windows 10 and 11. But all of them are on a single domain, so it might still be a settings/configuration issue within the domain. The TrueNAS replaced a Windows server though, and the problem was never seen there (the TrueNAS is even using the same hardware the Windows server once did.)
Did you ever figure out how to solve this problem?
I too have a TrueNAS Scale 24.10.1 (won’t upgrade because of sendmail issues) system with 9 shares define plus a “home” directory share. These are accessed from 2 Windows 11 and 1 Windows 10 system. The shares, while still showing in file explorer, seem to just disappear when I click on them. Then after some time (30 secs to 2 min later) they are again accessible. It seems that if I ping the server, that will also “wake” up the shares and they become available. Windows just comes back with the standard error message “Can’t access file” and some obscure error code.
