Calendar Plus - all version
Using "Use current logged-in user's windows credentials" does not show events.
You cannot use the “Use current logged-in user’s windows credentials” if your Exchange server and SharePoint servers are two different servers. By default you cannot delegate permission from one server to another. You will need to make some modifications on your domain to do that.
The following article refers to the process of how to make domain controller trusted for delegation:
Updated: Plan for Kerberos authentication in SharePoint 2013
Optionally provide private feedback to help us improve this article...
Thank you for your feedback!