I also check the router they're all the same except the IPv4. Is different I check the internet it said you dont need to be in the same IPv4 but have to be in the same wifi. Im in the same wifi but still wont work

Please Help

I have the same problem I retry download minecraft and direct connect and also add server but it wont work. It doesnt show up at all. I try refreshing it but still wont work.
Please Help

Oihh thats bad. Try to restart ut router

bump

Alright, well, I have a list now, of common issues, and hopefully yours can be fixed...
Otherwise, as a last resort download the Minecraft_Server.exe, and host it, you don't need to port forward to play in LAN... But Here we go!

A few problems that can arise when attempting to connect a game. Note that these suggestions are made to minimize issues, I do not mean to imply you have to meet every condition here for it to work. Also I am assuming a LAN game, since non-LAN games introduce a whole host of other issues to resolve.

Lack of connectivity - ensure everyone is connected to the home LAN (WiFi or cable), free WiFi or someone else's open WiFi can cause problems.

Logins - everyone needs to be logged into their own Minecraft account - You just simply cannot play if you both use the same account, NO EXCEPTIONS

Versions - make sure everyone is running the latest version, this includes the server software if you are using it

Mods - if you are using mods, try it without them to make sure they aren't causing problems, easiest way is to move the folder where your mods are stored somewhere else, including the main jar file

Firewalls - make sure that your firewall has an exception for the right version of Java, sometimes you can have a few versions installed, which can cause problems. Don't just allow the Minecraft.exe either, since it is just an updater. If your computer is connected to a network that you have told Windows is "public", there are rules in your Windows Firewall that Java set up that will disallow connections from public networks. Try disabling those rules.

IP Errors - IP addresses try to have a single IP address for each machine, this means don't connect to the wired and wireless at the same time, it can cause problems

Valid IP addresses - If you are running Windows, run ipconfig on both machines, and make sure you see 192.168 as the start of the IPv4 address. Also make sure the third digit (usually 0) matches. Google subnet masks if you want to learn how they work. To run ipconfig, you must open the command prompt (cmd) and type in ipconfig, then press enter.

Try Direct Connect various problems can prevent automatic finding from working, try typing the address printed when the world was enabled into the Direct Connect link.

Hopefully this fixes your problem

The IP is not binded to 0.0.0.0

If the LAN server will not display in the server "module", make sure you have started it, if you have, and it does not appear, try connecting to 127.0.0.1, if all else fails connect to the computers internal IPv4 it looks like something like 192.168.1.x, to find your internal IP open command prompt, and type in "ipconfig" and you should find it in that, if you are using a Mac, open terminal and type in "ifconfig" it will be harder to find the IP in those loads of text, but you'll find it!

Also, are you running the LAN server out of a Minecraft_Server.jar as in a standalone server, or are you clicking the 'Open to LAN' button in the game itself?

Is the I.P binding to 0.0.0.0? This was a problem in 1.4.4, but they fixed it in 1.4.5.

I had the same problem a while ago, but we fixed it like this: Write the ip in [Add server] and it should work (dont forget the port number!)

Have you tryed re-installing minecraft?

I have the same problem