I upgraded from CU21 to CU22 and after I rebooted all the services came up just fine. But I can't reach OWA/ECP at all and I've gone into IIS and checked the certificates, ports, and binding IP addresses as well and they all look normal. I've tried an unattended setup after I did the GUI upgrade .\setup.exe /m:upgrade /iacceptexchangeserverlicenseterms and it completes just fine as well. Still can't get any Outlook clients to connect. Which leads me to believe it's something to do with the Default Web Site as well as Exchange Back End in IIS. I'm running Server 2012 R2. I tried uninstalling IIS then did a complete unattended upgrade again hoping it would re-create the IIS pre-requisites as well as the correct permissions and directories in IIS. None of these solutions have worked. What am I missing?
Thanks in advance!