Running MS 2003 server. On a specific WS, If I change from my local
workgroup and join my domain, it asks me to provide user and password from AD to let me join. After joining the domain, it asks to re-boot the WS.

When I re-boot, I login as AD member, and all is well. However, upon a second re-boot and/or power off the WS, when I try to log back into the domain as the same user (or other users as well), it does not work. I get the error message that "user name, password, or domain info is incorrect."

If I "un-join" the domain and re-join the workgroup, then re-join the domain , I can repeat this process all over again.

Does anyone have any clue what could be causing this?

Thanks much,