Hello,
I found a little problem ( but didn't found solution ).

Code:
FR : Une exception de première chance de type 'System.IO.IOException' s'est produite dans System.dll
EN : A first chance exception of type 'System.IO.IOException' occurred in System.dll
I think that Error is occur when the socket is unloaded during a reception of data.

The Debugger report me here :
Code:
Dim byteCount = Me.stream.EndRead(ar)