I am encountering an issue in an Exchange 2016 infrastructure with two servers. When I type Get-HealthReport all proxies services are unealthies on both servers. FreeBusy is Healthy but it is impossible to get autodiscover working correctly while the mailbox profile charges. I did the check after having checked autodiscover preliminaries (which are correct):
Automatic discovery: Failure
Exchange Web Services: Failure
Offline Address Book: Failure
Event Viewer doesn't show anything abnormal.
It is impossible to get certain calendars for some mailboxes while some which had been loaded in the past appear to work correctly.
I recently created a new mailbox for a new coworker and autodiscover loaded the profile but outlook refused to start while the same client works with my mailbox which had been created before this issue. I don't know where to search knowing that I don't know anything in aspx, ASP.NET and C#.
New mailboxes work correctly in OWA. In Exchange PowerShell Console it is not possible to see mailbox calendars.
Really appreciate help,