Calendar-Modul won't work with Microsoft Exchange

[da_sepp89]

Hello everyone,

as you can see in the heading, i have an Exchange-Server running where my personal calendar is shared.
When I copy the .ics-Link into my browser it works fine.
But when i want to use this link on my mirror it always says “Loading…” and nothing happens.

Could that be because of it’s an german Exchange Server? Any ideas?

Thanks so far