I ran into this error While installing Dirsync on a DC server
The error shown “The Server is not operational”
Event log: “Enable-MSOnlinePasswordSync failed. Error: The pipeline has been stopped.”
The solution was simply to log off and log on to the DC server.
Good luck !

Sr. Cloud Solution Architect at Microsoft, I’m passionate about helping customers succeed by building secure, scalable, and innovative cloud solutions – with a strong focus on AI, DevOps practices, and end-to-end security. With a proven track record in the IT and services industry, I serve as a trusted advisor, partnering closely with organizations to guide them through digital transformation and maximize the value of their cloud investments.
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