Step 1: click on your user profile found inside of Teams on the top upper right-hand corner as shown below.

Step 2: On the Sub-menu click on Sign Out

Step 3: If Teams does not close by itself after signing out, please close the application by following the steps below.

• Click on the arrow found near the clock on the bottom right-hand corner of your desktop as shown below
• Right click on the Teams logo and select quit from the sub-menu

Step 4: Launch Teams app everything should be working.