![What should I do if the internet light is off or there is an error message “ WAN Port Unplugged” on the TP-Link router page? What should I do if the internet light is off or there is an error message “ WAN Port Unplugged” on the TP-Link router page?](https://static.tp-link.com/WeChat_Image_20201230155137_1609315121936v.png)
What should I do if the internet light is off or there is an error message “ WAN Port Unplugged” on the TP-Link router page?
TP-Link - Speed test for TP-LINK TL-WDR4300 WAN TO LAN Prepare Two PC: PC1 IP: 192.168.10.2 PC2 IP: 192.168.1.103 PC2 connect to ROUTER LAN port, then config the ROUTER as below: WAN
![router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi](https://www.codeproject.com/KB/IP/PortForward/Basic-Screenshot.gif)
router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi
![An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? | Answer | NETGEAR Support An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? | Answer | NETGEAR Support](https://www.downloads.netgear.com/files/answer_media/DITAToo/Knowledge%20Base%20Articles%20%28New%29/CHP%20Products/Routers/RAX20_loopback_test_front.png)
An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? | Answer | NETGEAR Support
![router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi](http://www.pcwintech.com/files/simple_port_tester_mac.png)
router port test, How check if ports on your router are open | Port Forwarding by 123CCTV - YouTube - marinette.fi
![An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? | Answer | NETGEAR Support An Internet or LAN port isn't working correctly on my router. How do I perform a loopback test to check the port? | Answer | NETGEAR Support](https://www.downloads.netgear.com/files/answer_media/DITAToo/Knowledge%20Base%20Articles%20%28New%29/CHP%20Products/Routers/RAX20_loopback_test.png)