transferring a dataset from freenas to truenas

[SmallBarky]

Unrelated? but it may be related to AD. Have you had updates to AD setup?

Update for 25.04.2 should be this week dealing with AD, but no updates to FreeNAS-11.1-U1 if the Microsoft AD updates are the problem.

Active Directory Security Update Requires TrueNAS Updates

On July 8, Microsoft issued a security update for Active Directory Domain Controllers for Windows Server versions prior to 2025. This update includes a change to the Microsoft RPC Netlogon protocol, which improves security by tightening access checks for a set of RPC requests. TrueNAS (and other Samba implementations) running as domain members in these environments will be impacted by this change if they are configured to use the ‘ad’ idmapping backend. The fix for this TrueNAS change is docum…