What are the steps for computer network troubleshooting?

(1.) Ping 127.0.0.1 (If it fails, it means a hardware problem. Check whether the network card is installed correctly)

(2.) Ping your local IP (If it fails, it means TCP/IP It is not set correctly, check whether the IP is set correctly, and confirm that it is not blocked by the firewall)

(3) Ping gateway (number) (unable to pass, it means that the main import and export router of the network environment is faulty or the setting is incorrect) The packets cannot be sent in and out by mistake and cannot be connected to other servers)

(4) Ping the gateway (domain name) (no way, it may be a DNS problem)

(5) Ping the other party's IP or Website (unavailable means that the other party's network server may be temporarily shut down or the server is faulty. The reason for the inaccessibility has nothing to do with you)

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