Another quick blog post about changing domain controller IP and updating FMSO.

Change Domain IP

Run CMD as admin

Step1
Dcdiag /s:LAB-DC01

Step2
change IP to new IP

Step3
Ipconfig /flushdns

Step4
Ipconfig /registerdns

step5
Dcdiag /fix

netdom query fsmo

Move-ADDirectoryServerOperationMasterRole -Identity LAB-DC02 -OperationMasterRole SchemaMaster, DomainNamingMaster, PDCEmulator, RIDMaster, InfrastructureMaster

Windows Extend License (run in powershell and extend domain)

slmgr -rearm