Problem with Teams and Exchanmge OnPremise

Sinn Andreas 0 Reputation points

When I open teams and the calendar, I get no connection. When I do a Connectivity Test, it failed and I get:

An HTTP 403 forbidden response was received. The response appears to have come from Unknown. Body of the response: <html><head><title>403 Forbidden</title></head><body>Access denied</body></html>

What can I do?


Exchange Server
Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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Microsoft Teams
A Microsoft customizable chat-based workspace.
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  1. Andy David - MVP 141.5K Reputation points MVP
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  2. JimmyYang-MSFT 48,786 Reputation points Microsoft Vendor

    Hi @Sinn Andreas

    Did this issue happen when you using Exchange Remote Connectivity Analyzer?

    Based on my knowledge, the 403 Forbidden Error happens when the web page (or another resource) that you're trying to open in your web browser is a resource that you're not allowed to access. It's called a 403 error because that's the HTTP status code that the webserver uses to describe that kind of error.

    Here are a few things you can try:

    1. Check your internet connection and make sure it is stable and strong.
    2. Try accessing the Teams calendar from a different device or network to see if the issue persists.
    3. Check with your IT department to see if there are any network or firewall restrictions that may be blocking your access.
    4. Try clearing your browser cache and cookies to see if that resolves the issue.

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