If these connection fixes don’t work, you can try resetting your network settings on Windows 11/10/7 to potentially address multiplayer issues issues. Wired connections tend to be more stable and reliable for online gaming.
Consider a wired connection: If possible, connect your gaming device directly to the router using an Ethernet cable.Minimize bandwidth usage: Make sure no other devices or applications on your network are consuming excessive bandwidth while playing Diablo 4.Restart your networking devices: Turn off your Wi-Fi router and cable modem, then wait for a few seconds(20) before turning them back on.
If the speed is slow or below the recommended requirements for Super Mario Maker 2, contact your internet service provider to address the issue. Test internet speed: Use a reliable tool like to measure your internet speed.Check Wi-Fi signal strength: Move closer to your Wi-Fi router ensuring the connection is not unstable.