Dears, also there are something strange happend with me,
I Installed "DotNetStockListDemo" to test that my machine reaches your server correctly. I Noticed that when running the demo from shortcut on desktop it connects and streams data successfully as showen {PIC1}, but when running from the "DotNetStockListDemo" allocated in the installation directory "C:\Program Files (x86)\Weswit Srl\Lightstreamer .NET Stock-List Demo" did not connect and no data has been streamed as {PIC2}

kindly find the following screen shots for details

PIC1:
Click image for larger version.  Name: PIC1.jpg  Views: 983  Size: 49.9 KB  ID: 177

PIC2:
Click image for larger version.  Name: PIC2.jpg  Views: 953  Size: 41.8 KB  ID: 178

I do not know how that comes and the two paths refer to the same exe?
Is that helps in finding cause of not working RTD?