Windows computers with USB-C 3.0 / 3.1 / 3.2 do not support PCIe over USB-C port thus TS4’s Ethernet controller can not be recognized nor would it work. TS4’s Ethernet port would not work if your computer does not support PCIe from its Type-C port.

Please make sure your Windows computer can support Thunderbolt or PCIe over USB4. Leave the rest settings as default, such as MTU 1500.ĩ. Please do NOT choose the option with “ energy-efficient-ethernet“. Under “ Duplex“, please choose “ full-duplex” or “ full-duplex, flow-control” only. Change “Configure” from “ Automatically” to “ Manual“, and choose the “ Speed” you have with your router or switch, such as “100BaseTX”, “1000BaseT” or “2500Base-T”.Ĩ. If the problem persists, please move on to the next step.ħ. If its Ethernet Slot shows Red dot and “Not connected”, please plug cycle your Thunderbolt cable and Network cable then try again. Choose the “ Thunderbolt Ethernet Slot” with the GREEN dot that associated with the dock from the left. If the problem persists, please move on to the next step to disable “ Energy Efficient Ethernet“.Ĥ. Wait few seconds and see if the connection dot becomes green.

Once the new service has been created, click on “Apply” button. Choose “Thunderbolt Ethernet Slot X” from the dropdown list and use “Thunderbolt Ethernet Slot X” as the Service Name.

Now re-create a new network service that is associated to the Thunderbolt dock by clicking on the “+” button.

Remove all the “Thunderbolt Ethernet Slot” including the unused ones and the one with green dot.ģ. To do that, highlight the Thunderbolt Ethernet Slot X from the list and click on the “-” (Delete the selected service) button on the bottom left, then click on “Apply” button. You can remove any unused and current “Thunderbolt Ethernet Slot X” that is associated to your new Thunderbolt dock.

Mac ethernet not working