nx_udp_socket_create(....)" takes more than 40 seconds until the process is continued.

I try to build up the UDP communication between DK-S7G2 and PC. This works fine now on my application, but I don´t understand why the
"status = nx_udp_socket_create(&ip_0, &udp_socket, (CHAR * )"OSB UDP Port", NX_IP_NORMAL, NX_FRAGMENT_OKAY, NX_IP_TIME_TO_LIVE, 30)" takes more than 40 seconds until the process is continued.