Problem I can't join my friends lan server on some modpacks

[SkooArtz]

When i try to join my friends lan server on some modpacks, it just wont work, i'll tell you what i am trying to do.
He opens to lan, on some modpacks a full ip pops up (example: 123.456.7.89:12345) and on some modpacks a 5 number code pops up, there are some modpacks we really want to play on, but those are having the 5 number code, and i suppose this is what you do with the 5 number code, you basically get your IPv4 Adress from the cmd when i type "ipconfig" and i get the IPv4 adress, i put the iPv4 adress before the 5 number code, for example"123.456.7.89:12345" and then i try to connect, and all that pops up is "Connecting to server..." and it's forever like that, if i wait enough it wont work and i get disconnected back to the Multiplayer screen
Please help!

 

[erindalc]

Is there any specific error message in game or in your game log when you fail to connect?

Also when connecting via LAN, use the computers local IP address. It should be something like 192.168.x.x with the 5 number port.

 

[SkooArtz]

Is there any specific error message in game or in your game log when you fail to connect?

Also when connecting via LAN, use the computers local IP address. It should be something like 192.168.x.x with the 5 number port.

I think it says something with "SocketException"... he is not here right now so i can't say..., and that is exactly what i'm doing with the 5 number port, i do "192.168.x.x:12345
For example.

 

[Hambeau]

I think it says something with "SocketException"... he is not here right now so i can't say..., and that is exactly what i'm doing with the 5 number port, i do "192.168.x.x:12345
For example.

The first four numbers are an IPv4 Address... The number behind the colon is the port number to use. Tcp/Ip uses port numbers for specific services... 80 is HTTP, 110 is POP3 email, 20 and 21 are FTP, etc.

In fact ports 0-1023 are reserved for predefined or "Well Known" services.

1024-49151 are "registered" ports which can be requested for specific applications.

49152-65535 are available for "temporary" use, and therefor not assigned to specific uses.

In use, your system has an address... 192.168.0.1 for example. If you use POP3 for mail, all of your messages are sent to 192.168.0.1:110, any websites go to 192.168.0.1:80, etc.