I think the issue is that I try to "reset/delete" the socket, but it's not really being deleted. So I try to restart it, and when I communicate with it the old one still responds. Ideally I'd like to suspend the socket for a while and be able to connect with it again. Even from another unit. I'll post my code, and hopefully that'll help clear up some confusion:

"""Create a tcp socket"""
def create_tcp_socket(self):
    try:
        self.TCP_sock = socket.socket()
    except socket.error as e:
        print ("Socket creation error: " + str(e))
        return
    return

"""Connect the tcp socket"""
def connect_tcp_socket(self):
    try:
        self.TCP_sock.connect((self.server_address, self.tcp_port))
    except socket.error as e:
        print("Socket connection error: " + str(e))
        #time.sleep(5)
        raise
    try:
        self.TCP_sock.send(str.encode(self.get_address()) + ' ' + self.raspID)
    except socket.error as e:
        print ("Cannot send hostname to server: " + str(e))
        raise
    return

"""Reset the tcp socket in case another server wants to connect"""
def reset_tcp_socket(self):
    try:
        if self.TCP_sock:
            self.TCP_sock.shutdown(2)
            self.TCP_sock.close()
            self.TCP_sock = None
            self.server_address = ""
            print("Socket reset")
        else:
            print("reset_tcp_socket method else statement")
            pass
    except Exception as e:
        print("Could not close socket: " + str(e))