How to change the timeout of TcpClient.Connect?

Question

using (var client = new TcpClient())
{
    try
    {
        client.ReceiveTimeout = 1000;
        client.SendTimeout = 1000;
        client.Connect("1.2.3.4", 5); 
    }
    catch (SocketException)
    {
        Console.WriteLine("IP address is not reachable");
    }
}

Neither ReceiveTimeout nor SendTimeout makes any difference to the connection timeout. Is there way to modify the connection timeout? It takes 10 to 20 seconds for the connection to time out. It is too long.

Answer 1

Hi @Hong ,

You can use TcpClient.ConnectAsync Method to control the timeout period.

if (!client.ConnectAsync("remotehost", remotePort).Wait(1000))
{
    // connection failure
}

Best Regards.

Jiachen Li

---

If the answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.