Problems with named pipes

Question

Hello!

I'm new to programming using named pipes and threads.

I've got two applications: WPF client and Console server. Server sends some string data each second with use of NamedPipeServerStream presented as private member of Main method shell class. WPF client application establishes connection with server when specialized button is pressed. But when I press it again client application goes nuts. I'm not quite sure what to do next. Can anyone help.