Check to make sure that your network connection is stable and secure.

1. Ensure that your modem/router is powered on and check to make sure your Ethernet cables are securely connected
2. Check with your Internet Service Provider to see if there are any temporary service outages in your region.
3. Make sure your router is allowing access from the game being played
4. Adjust your router settings to make sure game traffic is prioritized
5. Update the firmware of your router or modem
6. Make sure your router is using the latest security protocols
7. Test your network connection with a speedtest tool
8. Monitor the network traffic to see if there is any congestion
9. Connect to the game or server using an alternate DNS server
10. Reset your router/modem or reset game connection settings

If none of these solutions help, you may need to upgrade your hardware.