last weekend i successfully converted my CAS server from physical server to a Vmware VM. I then renamed my old CAS server and changed it IP to something else. I assigned the same name and IP to the new VM and added it back to the domain. I made sure the DNS is updated and was able to ping MAIL server with DNS name for connectivity. However my exchanged service wont start or they would go to starting mode and then stop. My clients were not able to connect so after several reboots and service restarts i gave up and reverted back to my old CAS and renamed it back to its original name and IP all clients were able to connect. What am i missing here and doing wrong? If a server has the same name and IP as the old CAS it should work right? I did the same for my fileserver(DC) and it worked fine with no issues.