Hello,

There is an issue when you trying send large packet using TCP Client in one shot.
The error is on server side.

Example:

`
TcpClient client = new TcpClient("127.0.0.1", 9001);
client.Connect();
var toSend = new byte[1024 * 1024 * 1024];// = 1Gb

        //On different  machines can it crash at 3 iteration, but sometimes it's passed without error on server
        for (int i = 0; i < 20; i++)
            client.Send(toSend);

`

Overflow Error is in Buffer.Reserve(long capacity).

But when you trying doing this that way:

`
TcpClient client = new TcpClient("127.0.0.1", 9001);
client.Connect();
var toSend = new byte[1024 * 1024 * 256];// = 256 Mb

        //...always passed on server
        for (int i = 0; i < 20 * 4; i++)
            client.Send(toSend);

`