[C#] Socket Programmin Problem

[Krillere]

Hello, I'm trying to send some text between a server and a client. It works fine when I use it on 1 machine, but when I attempt to do send text between Computer 1 and Computer 2, it tells me this;

No connection could be made because the target machine actively refused it.

Server Connect code:

LstSck = new TcpListener(IPAddress.Any, 12345);
LstSck.Start();

Client Connect code:

IPAddress localAddr = IPAddress.Parse("127.0.0.1");
int Port = 12345;
IPEndPoint endPoint = new IPEndPoint(localAddr, port);

I tried changing the IP in the client, but it didn't help.

Yes, this is one of my first attempts at Socket programming, and yes, I fail at it.

- Krillere

[The-Eradicator]

That error usually means the port isn't open.

Are you running any firewalls?

[Krillere]

Firewall on both computers are down. I run the server first, and then the client, but the client never gets to the server. Which is weird, because it works when I use it on 1 computer, but bugs with 2 computer trying to connect to each other.

[Berusadeankan]

First thing's first, the IP. You'll need to set that to the IP adress the server is on. What errors do you get when doing that?

And could we perhaps see abit of your code? Makes it alot easier

[Krillere]

Well, when I set it to my home IP, which I will not share, it still can't connect. I'll upload the source when I get home.

[lanman92]

You're behind a router with NAT on(hopefully), so you don't want to use your external IP unless you're trying to connect over the internet. Your local IP should be 192.168.x.x

[Krillere]

I fixed it, just forgot to tell you. I found out that I could just use the: 192.168.1.100. So, thanks :-)

[Kirth]

int Port = 12345;
IPEndPoint endPoint = new IPEndPoint(localAddr, port);

'Port' 'port', case sensitive.

[Krillere]

I wrote it in the browser in about 5 seconds, it's just a typo. :-)