Consequences of not disabling socket

After encapsulating the socket, I changed all the previous programs, so I missed the closesocket function call. My habit of using UDP is to bind the specified local address and port,

Therefore, the previous socket is not closed, and the socket does not process the time_wait status. Of course, so_reuseaddr has been set, but it will still cause the next socket to fail to receive the request normally. After testing, the newly created socket can be bound successfully, but the return value is always 0 after the select read operation is called, but occasionally it still works. This is really a depressing uncertainty...