Asus RT-AC68U Ethernet Port Not Working? – Complete Fix Guide

If you have an Asus RT-AC68U ethernet port not working, we can help you. You can deal with customer support as a last resort because we have simple solutions you can do at home.

If your Asus RT-AC68U LAN ports are not working, anything you plug into them won’t have access to your Internet.

You won't be able to check your social media accounts, use the web, and enjoy wireless file transfers. In short, it can be very frustrating.

Fortunately, we can help you fix your Asus RT-AC68U ethernet port not working problem.

Check the cables for damage if your Asus RT-AC68U ethernet port stops working. Then, reboot your router to refresh your connection. Simply turn off your router, then turn it on again. If the problem persists, reset it to factory settings.

To fix your Asus RT-AC68U ethernet port, you must first determine the root cause.

If you know the culprit, you can take the appropriate action to clear the issue, saving you time and effort.

Why Is My Asus RT-68U LAN Ports Not Working

The Asus RT-AC68U LAN ports are ideal for a wired connection to your router, allowing you to connect your devices to a network.

If you experience issues with the ethernet port, it may be due to several reasons.  

Many users claim their Asus RT-AC68U LAN ports are not working due to the following causes:

1. Loose Or Damaged Cables

Your cables may not be connected properly. Either you forgot to tighten them, or they are broken.

2. Damaged LAN Port

If you see a flashing green or amber light on your router, it means your LAN port is broken.

The status light should be a solid green or orange, indicating that the network port is active.

3. Outdated Drivers And Firmware

Failing to update your drivers and firmware can cause your router’s LAN ports to malfunction. You need to get to the latest updates for your router to fix bugs.

4. IP Address not Assigned Properly

One of the possible causes for the RT-68U not working is misassigned IP address.

Either your device can’t get an IP address when connected to the LAN port, or the router can’t get an IP address when connected to your modem.

5. Temporary Glitches

The Asus RT-AC68U ethernet port may also experience temporary glitches that may cause it to malfunction. In this case, a simple reboot of your router may fix the issue.

Now you know the possible causes of your Asus RT-68U ethernet port isn’t working.

It’s time you learn about the troubleshooting steps you can take to fix it.

How to Fix Asus RT-AC68U Ethernet Port Not Working

Before discussing more elaborate solutions to fix the Asus RT-AC68U Ethernet Port Not Working, ensure you check the cables for damage.

Broken wires are one of the most common causes of connectivity issues, and be sure to rule it out.

Once you have eliminated damaged cables as the culprit, reboot your router to fix temporary glitches. Power cycling your router will refresh your connection.

Simply unplug the modem and router from the power outlet and wait for at least 15 seconds. 

Plug the modem back first, followed by the router. Then, wait for all lights to become green.

Finally, test your Internet connection to see if your ethernet port is working. If it isn’t, try out our solutions below.

Solution #1: Perform a Hard Reset on Your Router

If a simple reboot does not fix your Asus RT-AC68U ethernet port issue, perform a hard reset on your router.

It will completely wipe all configurations you’ve saved and restore your router to factory settings.

Here’s how you can restore your router to default settings:

1. Press and hold the Reset and WPS buttons simultaneously.
2. Wait until you see the LED notification lights flash.
3. Your device will power off and back on normally.

Note: It may take several attempts to fix your problem successfully. If that doesn't work, perhaps the port is physically dead.

Solution #2: Update Your Device’s Network Adapter Drivers

There are instances when it can seem like your ethernet port is not working, but it’s actually the network adapters on your device.

After all, a network is a two-way street, and the networking modules on both devices need to work so they can communicate.

There’s a way to check if the issue is caused by your network adapter or the LAN port on your router.

You simply need to connect the cable from that device to a different one to see if it works. If it does, you’ll need to update the network adapter drivers.

Here’s how you do it:

1. Open your computer’s Device Manager.
2. Look for the Network adapter item.
3. Click on the + sign to view all your installed adapters.
4. Choose the active network adapter.
5. Select Update driver.

Note: You can also download the driver from the manufacturer’s website, but the automatic search feature of Windows makes the process convenient.

Solution #3: Perform a Loopback Test on Your Router’s LAN Ports

A loopback test is one of the most effective ways to determine if you have a faulty ethernet port on your router.

After confirming that the issue is not the network adapter of your computer, you know that the cause is coming from your router.

You’ll know that you need to perform a loopback test when you isolate the problem with a specific port on your router.

You’ll also suspect a problem with the ethernet port if the LED notification lights are not lit up when the cables are connected.

Here’s how to perform a loopback test to confirm the status of your LAN ports:

1. Make sure that your router is switched on.
2. Get an ethernet cable and connect one end to the WAN or Internet port.
3. Connect the other end to the LAN 1 port.
4. Check the LED notification lights on your router.
5. Repeat the steps for the rest of the LAN ports.

Note: You want to see a green or white light on the ports you’re testing. If they’re not lit up, there is something wrong with the port.

Solution #4: Update the Firmware on Your Asus Router

If certain ports are not responding to your tests, don’t lose hope just yet.

It’s possible that the cause of the issue is a software glitch, and you can still get that ethernet port to work.

One way to fix this would be to update your router’s firmware.

Software issues can occur, and system files can get corrupted, which can cause your ports to stop working.

Doing this ensures that your router loads up the latest version of its software and gets all of its systems into working order.

Here’s how to update your Asus RT-AC68U router:

1. Open your web browser and type in router.asus.com to open WebGUI.
2. Type in your username and password to access the web interface.
3. Check the right-hand corner of the page for an update notification.
4. Click on Update Now.
5. Select Firmware Upgrade and wait for the process to complete.

Note: You can also manually update your router’s firmware by downloading the latest files on the Asus Support website.

Solution #5: Reset Your Router to Factory Settings

You will need to reset your router if none of these solutions work. It seems like a last-ditch effort, but it can do many wonders for various problems.

Your router’s firmware could be corrupted to the point that it won’t allow updates. If it’s come to this, you can use the reset to factory settings function to wipe everything from your router.

The only downside to resetting your router is that you will need to reconfigure your settings.

It will take a bit more time after the reset, but it will resolve many problems, including LAN port issues.

Here’s how to reset your router:

1. Open the WebGUI of your router and log in.
2. Go to Administration, then select Restore/Save Setting.
3. Click on the Restore button.
4. Press OK to confirm the reset.
5. Wait for your router to reboot.

Tip: Do not shut down the router during the reset process, as it can cause your router to break.

This is how you get your Asus RT-AC68U ethernet ports working again!

If you’re still unable to connect to the internet using a wired connection after performing all these steps, contact Asus customer support.

Read Next: How to Fix Asus Router Login Not Responding?

Bottom Line

Now that you know what causes your Asus RT-AC68U ethernet port not working on your router, you can start fixing it.

Simply follow the proven solutions described above, and you’ll get that ethernet port up and running for your wired connections.