1. Please turn off the firewall of the computer systems at both ends of the connection;
2. If you are running a Linux operating system, please confirm whether other ports of the network card are connected and are in the same network segment/gateway. At this time, you can modify the test network segment to facilitate testing or change it to automatic acquisition.
3. You can ping the network card IP to check whether the driver is installed correctly (or ping 127.0.0.1 locally).
