The exchange 2016 server web version can be opened, but the outlook client cannot connect to the solution
This problem must have occurred in a large area, and it must be the problem of the server. If it is the problem of a single user, repair the computer for others.
This is because the service Microsoft Exchange RPC Client Access did not start. Start it manually.
Some people, brainless, do not check after restarting the server, there will be such a problem. Pretty stupid.