i finally could caught pd in the act of freezing:
the console said:
recv: Connection refused (111) netsend: Socket operation on non-socket (88) warning: 33 removed from poll list but not found
i connect every second to mobile phones that run Lemur to send and receive OSC usually if a phone leaves the network, nothing bad happens, the console says:
recv: Connection refused (111) netsend: Bad file descriptor (9) warning: 32 removed from poll list but not found
So it seems to me that this non-socket(88) problem manages to freeze pd (or is it this number: 88, which has a bad connotation in austria ?)
Thanks! michael