Outlook 2025 Calendar No Connection. I have some problem with access calendar other user's calendar in outlook 2016. If outlook says, there was a problem connecting you to the shared calendar, check if the option works on outlook on the web.

When opening the calendar in outlook, the calendar displays a no connection message next to its name. When a user tries to access the calendar by using outlook on the web (formerly known as outlook web app), that user receives the following error message: