Hello everyone. We recently moved to a new set of Win2k3 terminal servers that also have a domain controller for about 5-10 fat clients we have around. Two of these are computer controlled CNC machines that are basically DOS computers that run DOS TCP networking and have a custom control interface. Since our switch from NT to 2k3, these and only these two CNC clients cannot log onto our domain, which has that same name as it did before. Other fat clients can log on just fine. There is a net logon command in the autoexec.bat file, and now whenever it runs I get prometed to, "Enter password for the Domain XExampleX:", but the password is already inclued in the net logon command. After entering the correct password, I am always greeted with the message, "Error 5: Access has been Denied." Entering the wrong password also generates this same message. I have tried many things, including: reinstalling DOS TCP networking, changing the password, deleting the password file, and using the net start command instead. All of these yeilded no luck, as the machines also need to seamlessly boot, and not prompt for a logon. I have been searching microsoft's support quite a bit, and can't seem to find anything applying to this specific issue. Any help would be greatly appreciated. Thanks in advance. -E.J.