Unable to obtain access rights list. (Ref. 5006)

[maxxer]

Hi.

As of today, after no apparent change on anything on the network, we're unable to access shares using AD users.
In the backend I can see domain users and group, the share auth mapping is correct, but when I try to access via SMB login is denied.
The only strange think I noticed is when double clicking on a domain user I get a popup with the error:

Code: Select all

Unable to obtain access rights list. (Ref. 5006)

I tried first rebooting and then updating to the latest 3.5.6.RHA2 but issue persists.

What can I check to restore shares access?
Thanks