I wanted to play with my friends on a multiplayer server at Minecraft again. My new router blocked the port for some reason and I had to release it in the router settings. For a short time, the port is not working anymore, even though it's still unlocked. So if I'm in the multiplayer menu, the whole wlan does not work anymore! Does anyone have a solution?
Reset the router to factory settings.
I already have
Are you sure that the port is not already being used by another application?
Does the Wi-Fi only for your computer, or for all?
