ALTERNATIVE OF RESPONSE.REDIRECT - Client.openRead To Send Request And Passing Line Through Finalurl

I am using a client.openRead to send request and passing line through finalurl.

Dim data As Stream = client.OpenRead(finalurl)

Now my server blocks ports and i am getting error on this line now is there any other solution to client.OpenRead and what ever i am sending throught this is code is going on other company's server so i can't tell then to change their way so is there any other solution to this?

I AM THINKING THAT IF PORTS THEN IMPOSSIBLE TO SEND REQUEST.SO ONLY WAY IS TO CHANTGE SERVER WHER I HOST MY SITE

Dim data As Stream = client.OpenRead(finalurl)

And in final url i have other sites url and some querystring data

For example

dim finalurl as string= [url]

I already use WebHttpRequest but it not works still server not allow it.But i try it with response.redirect and it works but not suiteable to my conditions.i want control on my site so i was using Dim data As Stream = client.OpenRead(finalurl) but now server block some ports due to some reasons