Calling .NET class in MATLB is not Working but it is working in VB.net

I have a public .dll (KRcc64.dll) created by a machine manufacturer using .NET for interfacing any custom code/program with his machine .

It has a class called "Commu" for making TCP/IP connection with the machine .

"Commu" class Parameters are :

• TCP or COM
• IP address
• port
• time-out

I wrote a small code using VB.Net to test it & it is working perfectly .

Here is the VB.net code :

Module Program
Sub sample_of_command()
   'connect to the controller
    Dim comm As KRcc.Commu
    Try
        Console.Write("connecting . . . ")
        comm = New KRcc.Commu("TCP 127.0.0.1 10300 3000")
        Console.WriteLine("done")
    Catch
        Console.WriteLine("Can't connect")
        Exit Sub
    End Try

The issue which i faced it is trying to use this .NET with MATLAB and always getting immediate response from MATLAB as followings :

% Message: can't connect TCP/IP 
% Source: krcc64

I am using the following MATLAB code

asm = NET.addAssembly('C:\**\krcc64.dll')
Comm_Port = KRcc.Commu('TCP 127.0.0.1 10300 3000')

Please your support !