Exchange Server
A family of Microsoft client/server messaging and collaboration software.
1,404 questions
I would go through the troubleshooter:
Problem with Teams and Exchanmge OnPremise
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 41%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESA%3C/text%3E%3C/svg%3E)
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?
Thx
Exchange Server
Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(112.00000000000001, 24%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
JimmyYang-MSFT 55,701 Reputation points Microsoft Vendor2024-03-28T08:33:07.7066667+00:00 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:
- Check your internet connection and make sure it is stable and strong.
- Try accessing the Teams calendar from a different device or network to see if the issue persists.
- Check with your IT department to see if there are any network or firewall restrictions that may be blocking your access.
- Try clearing your browser cache and cookies to see if that resolves the issue.
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Sinn Andreas 0 Reputation points
2024-03-28T08:37:20.0066667+00:00 Hi,
I have this checked all, but I think the main problem is that we have no hybrid configuration. Or does it also work in a none hydrid environment?
Thanks,
Andreas
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JimmyYang-MSFT 55,701 Reputation points Microsoft Vendor
2024-03-28T09:50:43.6833333+00:00 For integration with on-premises, it's highly recommended that you have an Exchange full Classic Hybrid deployment with Exchange Server 2016 or later. For more details about its integration, you could refer to:
https://learn.microsoft.com/en-us/microsoftteams/exchange-teams-interact
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JimmyYang-MSFT 55,701 Reputation points Microsoft Vendor
2024-04-01T09:41:37.0066667+00:00 I am checking the status of this case. Please let us know if you would like further assistance.
Meanwhile, if the reply is helpful to you, please try to mark it as an answer, it will help others who encounter the same issue and read this thread.
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