Note that computers can be configured not to respond to ICMP echo requests. For more information see the ping(8) manual. Ping is used to test if you can reach a host. Check if you can resolve domain names (e.g.9.9.9.9, which is a DNS server operated by the Quad9 Foundation and is a convenient address to test with). You can ping a public IP address (e.g.Your routing table is correctly set up.Your network interface has an IP address.The cable is plugged in or you are connected to the wireless LAN. ![]() Otherwise, check the device driver – see /Ethernet#Device driver or /Wireless#Device driver. Your network interface is listed and enabled. ![]() To troubleshoot a network connection, go through the following conditions and ensure that you meet them: Medium-specifics are handled in the /Ethernet and /Wireless subpages. ![]() This article describes how to configure network connections on OSI layer 3 and above.
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