Want to gamble with my sis Minecraft on 1.13, but always this mistake when I join over lan? Please help my sis (8) is crying?

Ta
4

Want to gamble with my sis Minecraft on 1.13, but always this mistake if I join over lan?!

Co

Is the world visible as a LAN world?

Is the correct port used? (LAN world is always changing - is in the chat)

Possible Emergency Solution (Use Temporary Only): Turn off Windows Firewall for LAN

Want to gamble with my sis Minecraft on 1.13, but always this mistake when I join over lan Please help my sis 8 is crying
Ta

Lan server is visible

Co

Do you both have the same MC version (if mods exist exactly the same!)

For example, 1.13 can't access 1.13.2 in the LAN

Maybe do that with the firewall on both PCs.

Ta

Thank you funktiniert now!