Philip21,
Try this , I tried it and it works.. It works in my lab...
Connect to windows domain:
1. Go to Open-E NAS web interface Setup->Nas server setup 2. Select ADS or PDC (deepens on your system - if you have NT4 Domain or Windows 2003 (with no Kerberos* fix) then select PDC, else select ADS).
3. Enter your domain name - in PDC this will by the short domain name (example. COMPANY) in ADS enter full domain name (example. COMPANY.COM.DE).
4. Enter your domain/Kerberos server IP
5. Enter name and password of an existing Administrator user account on your domain.
6. Click Apply to join into domain.