so I have the following setup: Server: Windows 2012, Exchange 2013 (problem) Client: Windows 10, Outlook 2016
User A has access to some calendar of other people. Excepting the calendar of User C, it works fine. If User A wants to see the calendar of C, there is a message, respecting the rights. I'm sure, User A has the rights, but there is this error. Other people have no problems to access the calendar from C.
After trying it with a new Outlook profile, I made a try with web app. User A can open the calendar from user C on web app without problems.
Now its going a little bit more confusing. I tried another User on the machine from User A. User M can access the calendar C on his machine, but not on the machine from A. So I tried User A on the machine of User M. It doesn't work.
So guys, I now its confusing. I read it twice, its really like I wrote above.
Has anyone an idea what I can do? In the event log on the machines are nothing to see, expecting the message respecting the rights.