Truenas Scale ads_connect

Hi, have installed TrueNAS-SCALE-22.12.0, and on trying to get it to join my Active Directory on Windows Server 2022 I get the following error:

ads_connect: No logon servers are currently available to service the logon request. Didn’t find the ldap server!

The domain, account and password is correct and has been used to activate/join many accounts. Settings show the correct time and correct DNS addresses.

I have installed this version on another machine and it gives the same error message on trying to join. I have also installed latest version of CORE and my attempt to join it to Active Directory worked fine.

I have tried many ‘solutions’ but still get the same result.

Any advice…