I am trying to make an UEFI application with EDK2 that connects to a TCP server. This is what I got right now:

#include "Tcp.h"

EFI_STATUS EFIAPI UefiMain(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable) {
    EFI_STATUS Status = EFI_SUCCESS;

    // Declare pointer to TCP4 protocol
    EFI_TCP4_PROTOCOL *Tcp4Protocol;

    // Locate TCP4 protocol
    Status = gBS->LocateProtocol(&gEfiTcp4ProtocolGuid, NULL, (VOID**)&Tcp4Protocol);

    if (EFI_ERROR(Status)) {
        Print(L"Failed locating TCP4 protocol. Status: %rn", Status);
        
        return Status;
    }

    // Declare TCP4 configuration data
    EFI_TCP4_CONFIG_DATA TcpConfigData;
    TcpConfigData.TypeOfService = 0;
    TcpConfigData.TimeToLive = 255;

    // Initialize TCP4 configuration data
    ZeroMem(&TcpConfigData, sizeof(TcpConfigData));
    TcpConfigData.TypeOfService = 0; // Sets Type of Service field in the IPv4 header to 0
    TcpConfigData.TimeToLive = 255; // Sets Time to Live field in the IPv4 header to 0

    // Configure TCP4 protocol
    Status = Tcp4Protocol->Configure(Tcp4Protocol, &TcpConfigData);

    if (EFI_ERROR(Status)) {
        Print(L"Failed configuring TCP4 protocol. Status: %rn", Status);

        return Status;
    }

    // Declare connection token
    EFI_TCP4_CONNECTION_TOKEN TcpToken;

    // Initialize connection token
    ZeroMem(&TcpToken, sizeof(TcpToken));
    TcpToken.CompletionToken.Status = EFI_NOT_READY;

    // Open a TCP4 connection
    Status = Tcp4Protocol->Connect(Tcp4Protocol, &TcpToken);

    if (EFI_ERROR(Status)) {
        Print(L"Failed to open a TCP connection. Status: %rn", Status);
    }
    
    return Status;
}

I always get “Failed to open a TCP connection. Status: Invalid parameters”
I don’t know what I’m doing wrong, maybe something with the connection token?