Thank you all for your replys, it is very appreciated!
First, I've tried to set the method to GET, but it still does not work... Second, for the securedURL variable that does not seem to be instantiated, it actually is, the method is part of a thread and all necessary variables were initialized before starting the thread...
The requests actually "talks" to the server because I'm able to read the error message the server gives me on the BufferedReader. It says ( Invalid input segments". The company who owns the server cannot offer me any support, but they told me that if I get this error, it's that I am not posting the request correctly ( the error is not the content of the request but the way I send it )
If you guys have anymore ideas, it would be greatly appreciated!