This Article Applies to: 

All TP-Link Routers

Phenomenon Description:

If you are experiencing issues with the Ethernet connection on your TP-Link router while the wireless connection is working fine, follow the troubleshooting suggestions below.

Troubleshooting Steps:

1. Check Ethernet Lights

• Verify if the Ethernet light on the router is lit up. If not, it indicates a potential problem with the Ethernet cable, LAN port on the router, or the Ethernet port on your wired client device.
• Try using a different Ethernet cable, switch to another LAN port on the router, and test with a different wired client device.
• For routers with a single indicator/LED, check if the device itself has detected the Ethernet connection.

2. Reboot Devices

• Reboot both your wired client device and the router. Sometimes, a simple restart can resolve connectivity issues.

3. Test with Another Device

• Connect another device to the router using the same Ethernet cable and port.
• If the Internet works on the other device, the issue lies with the initial device. Contact the technical support of that device for assistance.

4. Check IP Configuration

• Ensure that the wired client device is set to obtain an IP address automatically.
  • For Windows: Go to the Network Connection Details page and verify that "DHCP enabled" is set to "Yes."
  • For Mac: Navigate to Network > Advanced and confirm that "Configure IPv4" is set to "Using DHCP."

If the above suggestions do not resolve the issue, please provide the following information for further investigation:

1. Detailed Description of the Issue:

• Specify whether all LAN ports are not working or if it's a specific port.
• Indicate if the physical connection cannot be detected at all (Ethernet light off) or if the connection is detected but there is no internet access.

2. Screenshot of the IP Configuration:

• Capture a screenshot of the IP information on the device experiencing the issue.

3. Device Details:

• The brand name, model number, and operating system of your wired client device
• The model number, hardware and firmware version of your TP-Link router.

4. Troubleshooting You've Done and Results