Step 1: Check if the LED light on the docking station is on.

Step 2: please unplug and reconnect the following cables:

-The cable connecting the device to the docking station

-The USB-C cable between the docking station and the Mac

-The DC power cable

Step 3: Replug the Ethernet cable into the dock’s network port. Normally, you should see a steady green light and a flashing orange light.

*If the lights are abnormal or not showing, try using another device to confirm whether the network connector is functioning properly.

Step 4: Use your phone’s flashlight to check the RJ45 port on the dock for any damaged or bent pins.

*If pins are bent or pushed down, carefully correct them with a toothpick or fine tool.

*If the port is damaged and causes loose Ethernet connections, you can temporarily secure it with tape, or contact iVANKY support for replacement.

Step 5: Make sure macOS and all software are updated to the latest version.

Step 6: Update the Mac ethernet driver. For details, please visit the iVANKY official guide:

https://ivanky.com/blogs/news/ivanky-ethernet-driver-download-guide"

Step 7: Go to the Apple menu (upper-left corner) > System Settings> click Network. You should see USB 10/100/1000 LAN and USB 10/100/1G/10G LAN.

*Check the indicator color below each option and follow the corresponding troubleshooting steps.

*If the network is not recognized, please follow the steps for a gray indicator (no network detected).

2. Yellow status indicator below the service name (self-assigned IP)

Step 1: Restart the computer to reassign the IP address.

Step 2: Connect the network cable directly to another device (for example, a desktop computer or a laptop with an Ethernet port) to check whether the cable works properly.

Step 3: Turn off the modem or router and wait for 5 minutes. Then turn it back on to reassign the IP address.

Step 4: Re-plug the network cable to reassign the IP address.

Step 5: Reset the router to reassign the IP address.

3. Grey status indicator below the service name (no recognition of network access)

Step 1: Connect the network cable directly to another device (such as a desktop computer or a laptop with an Ethernet port) to test whether the cable is working properly.

Step 2: Create a new Apple sub-account.-> Restart the computer and log in with the sub-account.->Test whether the issue is caused by a software conflict on the main account.

4. Green status indicator (connected but not working)

Step 1: Reconnect the Ethernet cable.

Step 2: Plug the Ethernet cable directly into another device (e.g., a desktop PC or a laptop with an Ethernet port) to check if the cable works properly.

Step 3: If possible, try using a different Ethernet cable.

If the issue persists after these steps, please contact the iVANKY support team and provide the following information so we can check for possible device compatibility issues:

1.Your macOS version

2.Which device is not working and its model

3. A purchase link if available

1. Check accessories and connections

Step 1: Restart your Mac and make sure both ends of the dock’s USB-C cable and the Ethernet cable are securely connected.

Step 2: Reconnect the accessories between your Mac and the monitor. You can try flipping the dock’s USB-C connection to the Mac, and re-plug the Ethernet cable into the dock.

Step 3: Connect your Mac directly to the network using Ethernet or Wi-Fi to check whether the internet speed returns to normal.

Step 4: Disconnect all other devices from the dock except the Ethernet cable. Also, unplug other devices from the router, keeping only the cable connected to the dock. If the issue persists, try using a different WAN/LAN port on the router.

Step 5: Confirm with your cable provider that the Ethernet cable supports gigabit speeds (≥800 MB/s). You can also test the cable by connecting it directly to another device to verify whether it meets gigabit performance. Replace the cable if it cannot.

2. Restart the router

Step 1: Unplug the router and Ethernet cable, then wait at least 30 seconds.

Step 2: Reconnect the Ethernet cable to the router.

Step 3: Once the Internet indicator light is on (normally the green light stays solid and the orange light blinks), check if your Mac can access the Internet.

3. Update software

Step 1: Make sure macOS and all software are updated to the latest version.

Step 2: Update the Mac ethernet driver. For details, please refer to the iVANKY guide:

https://ivanky.com/blogs/news/ivanky-ethernet-driver-download-guide"

If the issue persists after these steps, please contact the iVANKY support team and provide the following information so we can check for possible device compatibility issues:

-Mac model

-macOS version

-Device that cannot be used properly and its model

-Purchase link (if available)

1. Check accessories and connections

Step 1: Restart your PC and ensure both ends of the dock’s USB-C cable and the Ethernet cable are securely connected.

Step 2: Make sure macOS and all software are updated to the latest version. Close all applications except Google Chrome and test for disconnections.

If the network works normally with only Chrome open, the issue may be caused by software conflicts. Please contact the iVANKY support team.

Step 3: Go to the Apple menu (upper-left corner) > System Settings> click Network. Check the USB 10/100/1000 LAN and USB 10/100/1G/2.5G LAN connections for repeated disconnections.

Step 4: Use a flashlight to inspect the dock’s RJ45 port for damaged or bent pins.

*If pins are bent or recessed, carefully straighten them with a toothpick or similar tool.

*If the dock’s port is damaged causing the cable to be loose, you can temporarily secure it with tape or contact iVANKY support for replacement.

Step 5: Connect the Ethernet cable directly to another device (e.g., a desktop PC or a laptop with an Ethernet port) to test whether disconnections still occur.

Step 6: Try using a different Ethernet cable.

2. Network environment check

Step 1: Restart the computer to reassign the IP address.

Step 2: Turn off the modem or router and wait for 5 minutes. Then turn it back on to reassign the IP address.

Step 3: Re-plug the network cable to reassign the IP address.

3. Update software

Step 1: Make sure macOS and all software are updated to the latest version.

Step 2: Update the Mac ethernet driver. For details, please refer to the iVANKY guide:

https://ivanky.com/blogs/news/ivanky-ethernet-driver-download-guide

If the issue persists after these steps, please contact the iVANKY support team and provide the following information so we can check for possible device compatibility issues:

-Mac model

-macOS version

-Device that cannot be used properly and its model

-Purchase link (if available)

If the Ethernet port on your iVANKY Thunderbolt device is unable to obtain an IP address from the DHCP server, or if there is no network traffic even though it is properly connected to your router or switch, the issue may be related to previous macOS network configurations or Energy Efficient Ethernet (EEE) compatibility.

Please follow the steps below to recreate the Thunderbolt Ethernet network service and, if necessary, disable Energy Efficient Ethernet (EEE) in macOS.

Step 1: 

1.Go to the Apple menu (upper-left corner) > System Settings > Network.

2. Locate all existing and unused network services named “USB 10/100/1G/2.5G LAN”.

3. Select each USB 10/100/1G/2.5G LAN entry, click Remove Service…, then click Delete.

4. Repeat this process until all USB 10/100/1G/2.5G LAN services associated with the Dock are removed.

Step 2: Create a New Thunderbolt Ethernet Service

Create a new network service that is associated to the Thunderbolt dock by clicking on the “… ⌵” button.

1. In the Network settings page, click the “… ⌵” button.

2. Select Add Service.

3. Choose USB 10/100/1G/2.5G LAN as the interface.

4. Use USB 10/100/1G/2.5G LAN as the service name, then click Create.

5. Wait 5–10 seconds and check the status indicator: A green indicator means the connection is detected. Test the network. If the issue persists, continue to Step 3.

Step 3: If the Status Indicator Remains Red

If the newly created Thunderbolt Ethernet service still shows a red indicator after a short period:

1. Disconnect and reconnect the Thunderbolt cable and Ethernet cable.

2. Disconnect the Dock completely and wait 30–45 seconds.

3. Reconnect the Dock and test the network again.

If the issue persists, continue to Step 4 to disable Energy Efficient Ethernet.

Step 4: Disable Energy Efficient Ethernet (EEE)

1. Select the USB 10/100/1G/2.5G LAN service that shows a red indicator.

2. Click Details, then select Hardware.

3. Change Configure from Automatic to Manually.

4. Select the appropriate Speed based on your router or switch:

-100BaseTX -1000BaseT (1 Gb)

 -2500Base-T (2.5 Gb)

-5000Base-T

-10Gbase-T (10 Gb)

Note: iVANKY FusionDock Ultra supports speeds up to 10Gbase-T.

5. Under Duplex, select Full Duplex or Full Duplex, Flow Control. Do not select any option that includes “Energy Efficient Ethernet”.

6. Leave other settings at their default values (for example, MTU 1500).

7. Click OK, then click Apply.