The simple answer (or at least starting point) would be to change the port number (or even change it to use a different NIC/network-card's address instead), as it looks to be clashing with the server's use of the same IPv4 address & port # (- it's hard to know for sure as you've replaced the last two IP address octets/bytes with 'XX.X' & 'XX.XXX' but that's unnecessary/there's no value in doing so as you appear to be using a private network address); hence the "Address already in use: Cannot bind ..." error/exception message.