[] -[NWConcrete_tcp_connection dealloc] 11  [] nw_socket_handle_socket_event Event mask: 0x4  [] nw_socket_handle_socket_event Socket received WRITE_CLOSE event  [] nw_socket_handle_socket_event Event mask: 0x4  [] nw_socket_handle_socket_event Socket received WRITE_CLOSE event] tcp_connection_cancel 5  [] nw_socket_handle_socket_event Event mask: 0x4] nw_socket_handle_socket_event Socket received WRITE_CLOSE event  [] nw_endpoint_handler_cancel [5 192.168.2.51:1999 ready proxy (satisfied)]] -[NWConcrete_nw_endpoint_proxy cancelWithHandler:forced:] [5 192.168.2.51:1999 cancelled proxy (null)]] nw_endpoint_handler_cancel [5.1 192.168.2.51:1999 ready socket-flow (satisfied)]  [] nw_endpoint_flow_protocol_disconnected [5.1 192.168.2.51:1999 cancelled socket-flow (null)] Output protocol disconnected  [] nw_endpoint_handler_cancel [5.2 192.168.2.51:1999 initial path (null)]  [] -[NWConcrete_tcp_connection dealloc] 5  nw_socket_handle_socket_event Event mask: 0x6