Thanks Lyndell.
I tried your modifications. Result is that now the entire execution (i.e. also others sockets) are all completed. But, still, after some correctly executed commands (using the modified function), at one point it stops working. The interesting fact is that no error is reported at all...even in debugging window.

May it be related to the device itself? I mean the ampli which i'm controlling using the socket.

Anyway the function now looks like improved, as the process does not collpse at certain point. Only the ampli still "freeze" (meaning that he does not react) at LAN commands.

FKB