The problem I an having seems very strange. I can add a workstation to my domain with no problem but when I reboot the workstation and try to login in to the domain I get the following error: Windows cannon connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found. I took a look at the logs and it seems as if eht user or the machine is considered the guest account. I am wondering if it is a domain sid issue. Is it possible to overwrite the domain sid once you promote a Samba BDC to the domain PDC. Also I would like to add that I cannot run any of the net commands. Running the net rpc info command give me nothing. Running the wbinfo command gives me an error. Any help would be appreciated. Thanks