Recently we changed the IP and Subnet of an exchange 2016 server. Trying to Open ECP Showed the Error :
Topology Provider coundn’t find the Microsoft Exchange Active Directory Topology service on end point
This is due to the Server Microsoft Exchange Active Directory Topology not starting
The service was not starting because of the new Subnet was not listed in Active Directory Sites and Services which meant Exchange was not sited aware
Add the domain and restart the server
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