Hi @Emily S
First, your device hardware needs to meet the minimum requirements listed in this document to use Teams properly.
Please refer to Microsoft 365 URLs and IP address ranges to meet Teams' network needs.
Please use New Teams and update Teams to the latest version.
According to our research, a code issue introduced by a recent Teams feature update may cause media crashes in Microsoft Teams meetings. The product team is currently working hard to fix the issue. We will notify you as soon as there are any updates.
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