Can a Windows 2000 Server Join a 2016 Domain?
Contents as Long as the 2000 Machine Isn’t Trying to Be a Dc, You’re Fine. I Had to Test This a Couple Year's Ago and Was Able to Join Server 2000 to a Server...
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As long as the 2000 machine isn’t trying to be a DC, you’re fine. I had to test this a couple years ago and was able to join Server 2000 to a Server 2016 domain controller at the 2016 DFL. If the app is using some weird, custom authentication method, you might have issues.
Can Windows 2003 join 2016 domain?
DC 2016 will not support Windows 2003 Domain Functional Level so this needs to be changed before.
Can a Windows 2000 server join a 2012 domain?
Windows 2000 Server will work just fine as a member server in a 2012 domain, regardless of domain functional level.