Teams won't load or error: 'There was a problem reaching this app'

1. Save all of your work and click on the windows start button

Is there a time limit or maximum number of people/guests in a meeting?

No time limit (technically 30hr). 1,000 max people in a meeting. You do get a notified the original meeting end time is near, you can simply ignore it:

Teams crashes, restarts, or audio briefly doesn't work while starting a meeting

1. Before you are fully in the meeting, after clicking the join link you need to adjust your audio settings
   
2. Under the 'Computer audio' section click the adjust button 
   
3. Then change the speaker and/or microphone if needed or to test if those are causing the crash/restarts
   

Teams error message: 'Something went wrong' preventing files from opening or other issues

Clear Microsoft Teams app data

1. If you are experiencing issues with loading documents or continued Microsoft Team quality issues, it can help to reset the Microsoft Teams app. This will clear the app's cache and data, essentially resetting it to its default state. A new copy of your data will be downloaded, no chats, meetings, documents or recordings will be lost.
   

   When you reset the Teams app, the app data will be deleted. This includes any personalization settings that you might have configured.
   

   
   

   Steps:

   1. Open Windows Settings
      
   1. 
      
   2. Go to Apps > Installed apps
   3. Find Microsoft Teams
   4. Click the three dots next to Teams and select Advanced options
   5. Scroll down to the Reset section and click Reset.
      
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