The issue you are experiencing with your online status being shown as unknown in Microsoft Teams, along with your contacts' statuses also appearing as unknown, can be caused by several factors. Here are some potential causes and troubleshooting steps you can take:
- Check if you are signed in: Ensure that you are signed into Teams properly. If you are not signed in, your status will not update correctly.
- Presence Status: Verify that your presence status is not set to "Appear offline". If it is, change it to a different status.
- Network Issues: There may be a network communication issue affecting the unified presence service (UPS). Check your network connectivity.
- Using Skype for Business: If you are using Microsoft Skype for Business, this could also lead to presence issues as it may not integrate seamlessly with Teams.
If none of these steps resolve the issue, you may need to open a support ticket with Microsoft, providing them with the necessary details such as your sign-in address and any relevant logs.
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