I’m about to demote my last 2003 Domain Controller this week and I was wondering when do I upgrade FRS to DFSR? Right now I’ve left the 2003 box running but with the NIC unplugged since Friday. Plan to demote this upcoming Friday if there are no issues.
After that, I’m going to upgrade the Domain Functional level to 2008 as my goal is to upgrade the entire Domain level to 2019. The 2008 is just a stepping stone. Once I get rid of the 2003 server and have the Domain upgraded to the 2008 level, is that the time to change FRS to DFSR?