You may not be able to start a multiplayer race if your Internet connection or that of players you are racing with is unstable.
Check the following for ways that you may be able to resolve this issue:
・Play in an area where you can get a stable connection.
・Try playing at different times.
・Switch between cellular and Wi-Fi connections.
・Restart your router.
・Check the settings of the following apps or software if you are using them:
- Security software
- Content blocker
- VPN
- Go to your device settings, tap Network and Internet, and turn off Data Saver.
・Close apps other than Mario Kart Tour.
・Restart your device and Mario Kart Tour.
・In Mario Kart Tour, go to Settings, scroll down to the System section, and turn on Power Saving.