Thanks to Doggy and others I found out

Code:
Dim client as WebRequest = WebRequest.Create("http://192.168.1.22:8088/api/?Function=StartStreaming&Value=0")
Dim response As WebResponse = client.GetResponse()
response.Close

starts Stream 1 on my Slave Machine

and

Code:
Dim client1 as WebRequest = WebRequest.Create("http://192.168.1.22:8088/api/?Function=StartStreaming&Value=0")
Dim client2 as WebRequest = WebRequest.Create("http://192.168.1.22:8088/api/?Function=audiobusOn&Value=M&Input=1")
Dim response1 As WebResponse = client1.GetResponse()
Dim response2 As WebResponse = client2.GetResponse()
response1.Close
response2.Close

starts Stream and routes Audio Input to master.

Now I am asking myself, does that make sense?
Couple of researches didn´t bring up any light so the shown I call it "Lumberjack Script" worked
out in the end...

wait I'm confused what's special about this? you're simply starting a stream on two systems. am I missing something? what exactly are you doing I'm curious because maybe it's something i'm not getting and want to know :)

as for your issue perhaps try changing your
DefaultConnectionLimit

and don't ever declare variables on the same line as you have especially in an interpreted language. make sure to declare them separately like your other example:

dim res1 as WebResponse
dim res2 as WebResponse
dim res3 as WebResponse
etc

it's because reading it sucks and in certain languages and compilers, you will have an issue where the As only applies to the last variable. I know VB is a loos binding language but I would start there. I haven't written code in 8 years and my last language was C\C++ with some .NET so don't take my word on it :)

if you are going to send several commands I think you should use scriptsdinamics .... translated from google spanish english