All versions - My additional content vanished and online services are not available anymore

If you suddenly notice that some or all aircraft are missing aside from two and/or the marketplace & Online Services are greyed out, make sure that:

• You are connected to the internet, and the connection is stable (we recommend using a wired connexion over WiFi)
• Offline mode isn't activated in-game.
• You haven't reached your monthly data limit.
• Digital Ownership is correctly installed/up-to-date in the Microsoft Store app
• You are logged in to the Microsoft Store app with the account used to purchase a copy of Microsoft Flight Simulator.

If you're offline or if Digital Ownership isn't installed/up-to-date, you won't be able to authenticate your content. Likewise, only the account used to purchase a copy of the game can use the additional content when using Family sharing.

Finally, once you reach your data limit, all online services turn off.

Note: The data cap will reset at the date you have set up—by default, it should be on the first day of every month unless you have selected a different day.

TROUBLESHOOTING

If the problem persists after proceeding to the above verification, launch Microsoft Flight Simulator then do the following:

Sign out and sign back in again to refresh the connection to your Xbox Live account.

1. Launch Microsoft Flight Simulator
2. Click on your icon in the top right-hand side corner of the screen
3. Click on Sign out
4. Exit Microsoft Flight Simulator & reboot your computer
5. You will be prompted to enter your Microsoft Account credential the next time you launch Microsoft Flight Simulator. 

Restart Online Functionality

1. Launch Microsoft Flight Simulator
2. Go to Options > General > Data
3. Toggle Online Functionality OFF
4. Click on Apply & Save
5. Toggle Online Functionality ON
6. Click on Apply & Save

If you have reached your data cap limit, you can increase or remove the data limitation from the same screen.