@uberiain said in XCP-ng Center 25.04 Released: Hi, with this modification on MainWindow.cs in private List<TabPage> GetNewTabPages() adding this at the end: This will add the tab back in XCP-ng Center but I don't think it works in XCP-ng 8.3. I just upgraded from 8.2.1 to 8.3 when I logged into XCP-ng Center I saw the error message Active Directory authorization is not available","Server 'xcp-ng-TEST' has failed to connect to the Active Directory server. INTERNAL_ERROR: [ Xapi_systemctl.Systemctl_fail(""INTERNAL_ERROR: [ Subprocess exited with unexpected code 1; stdout = [ ]; stderr = [ Job for winbind.service failed because the control process exited with error code. See \""systemctl status winbind.service\"" and \""journalctl -xe\"" for details.\n ] ]"") ]","xcp-ng-TEST","Jul 11, 2025 3:58 PM"," # systemctl status winbind.service winbind.service - Samba Winbind Daemon Loaded: loaded (/usr/lib/systemd/system/winbind.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since Fri 2025-07-11 16:01:28 AEST; 3min 15s ago Docs: man:winbindd(8) man:samba(7) man:smb.conf(5) Main PID: 9593 (code=exited, status=1/FAILURE) Status: "Starting process..." I haven't figured out what to do yet. None of the users can log into XCP-ng Center using their Active Directory credentials and only root can log in. EDIT: Actually winbind wasn't even used in XCP-ng 8.2.1, I'm not sure why this service started up in 8.3. XCP-ng 8.2.1# systemctl status winbind.service ā— winbind.service - Samba Winbind Daemon Loaded: loaded (/usr/lib/systemd/system/winbind.service; disabled; vendor preset: disabled) Active: inactive (dead) Docs: man:winbindd(8) man:samba(7) man:smb.conf(5) But I can see that windbind is used for XenServer 8.4 https://docs.xenserver.com/en-us/xenserver/8/users Anyone got suggestions on how to get AD authentication working with XCP-ng Center again? Or add users manaully? SOLUTION: What I found after following the steps in the in the XenServer page above is that if I disable AD Authentication then re-enable it then it will work. To Disable AD Authentication: xe pool-disable-external-auth Enable AD Authentication: xe pool-enable-external-auth auth-type=AD service-name=full-qualified-domain config:user=username config:pass=password Without the Users tab in XCP-ng Center, CLI command is needed to add or remove users. Refer to the XenServer page above. xe subject-add subject-name=entity_name