If this doesn't provide answers, take a look at the router configuration and logs. Open Terminal.app and run the following command to trace a route to your ISP's DNS server (which I've taken from the screenshot): traceroute 103.109.124.52 Make sure you have disabled all apps that reconfigure your routing (e.g. To rule out any possible service misconfiguration, remove the Ethernet service (with the button - below the list of services) and add it again. You have also disabled any proxy settings in the service's 'Advanced' settings.Ī) it's a configuration issue on your Mac orī) your router blocks connections from/to the MAC address of your Mac's ethernet adapter. On the next screen, switch to TCP/IP tab and click on Renew DHCP Lease button. On your primary Mac, open Network Preferences by going to System Preferences > Network, or by clicking on the Wi-Fi symbol in your Macs top menu bar and selecting 'Open Network Preferences'. On Network screen, select your Network (Ethernet or WiFi) in the side-menu and click on Advanced. On System Preferences screen, click on the Network Icon. You have already verified that changing the IP address does not have any effect, so we can also rule out firewall rules that block on that basis. Click on Apple Logo in top menu-bar and select System Preferences in the drop-down menu. This rules out any problem with the ethernet connection itself. The Ethernet service is shown as Connected, so the physical ethernet link was successfully established.Īn IP address was received by the DHCP server, as well as a valid configuration for subnet, gateway and DNS servers, so communication from your Mac to the DHCP server (in this case your router) was successful.

Mac ethernet no working