Test if Firewall is blocking a Port. Check which Ports are being used. Also learn how to check which process or service is using the open port.

Ethernet cables are needed for internet connectivity. If you are having issues, you can do a simple test to see if it is faulty.

If your Ethernet port has stopped working on your Mac, check System Information to find the version number of the Incompatible Kernel Extension Configuration file installed.

Check your router settings to see if QoS is enabled and adjust it accordingly. Use Gigabit-Capable Ports: Ensure that you are using a gigabit-capable port on your router or switch.

The indicator lights for active Ethernet connections might help you troubleshoot problems with a Wi-Fi router. While Wi-Fi and Ethernet may seem like two utterly different pieces of technology ...