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teams calendar function question

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At a glance

The community member is experiencing an issue with the calendar function not working when accessing Microsoft Teams through the intranet, rather than the internet. The community member would like to know which websites should be added to the firewall to open the calendar function. In the comments, another community member suggests allowing traffic from the web.teamforms.app and graph.microsoft.com domains on the firewall. They also recommend checking the network tab in the browser's developer tools to see what requests are being blocked and adding a firewall rule to allow that traffic.

HHsu Yao Chang

hi,

Our end user feedback when she login teams by website or app, the calendar function not run successfully, because she use team by intranet, not internet. I would like to check which website should be added to firewall to open calendar function? Thanks.

A
1 comment
AAnthony Phan

Hi @Hsu Yao Chang

You should just need to allow traffic from web.teamforms.app and graph.microsoft.com domains on your firewall.

If something is being blocked by your internal firewall I recommend trying the following:

  1. Open Team Forms in Chrome or your browser of choice

  2. Open developer tools and navigate to the network tab.

  3. See what network requests are being blocked and add a firewall rule to allow that traffic.