Minecraft can’t connect to a server on the same computer on Windows

Note

These steps are not required to connect to all servers. You only need to do this if you’re connecting to a server on the same computer that you’re running Minecraft on.

Disable UWP loopback restrictions for Minecraft

Windows UWP apps have some restrictions on what they are allowed to do by default. Unfortunately, this includes connecting to things on localhost.

To lift this restriction from Minecraft, launch Windows PowerShell as an administrator and run the following:

CheckNetIsolation LoopbackExempt -a -n="Microsoft.MinecraftUWP_8wekyb3d8bbwe"

If everything goes well, you’ll see a message: OK. You should now be able to connect (you may need to close and reopen the game).

Don’t use localhost for server address

Minecraft for Windows doesn’t correctly handle the localhost address.

Try using 127.0.0.1 (IPv4) or ::1 (IPv6) instead when adding the server to your server list.