![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)
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
![Ubiquiti Networks EdgeRouter 10-Port PoE Router with 2 SFP Ports, ER-12P: Amazon.de: Computer & Zubehör Ubiquiti Networks EdgeRouter 10-Port PoE Router with 2 SFP Ports, ER-12P: Amazon.de: Computer & Zubehör](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51RKapZhydL._AC_SY450_.jpg)
Ubiquiti Networks EdgeRouter 10-Port PoE Router with 2 SFP Ports, ER-12P: Amazon.de: Computer & Zubehör
![Wan port cable and lan ports connector on the back panel of dual band gigabit wi-fi 6 router or wireless ax router isolated | CanStock Wan port cable and lan ports connector on the back panel of dual band gigabit wi-fi 6 router or wireless ax router isolated | CanStock](https://cdn.w600.comps.canstockphoto.com/wan-port-cable-and-lan-ports-connector-stock-photos_csp82063131.jpg)
Wan port cable and lan ports connector on the back panel of dual band gigabit wi-fi 6 router or wireless ax router isolated | CanStock
![Four lan and one internet port on wifi router. Back panel of wifi router with lan and internet ports and one antenna. | CanStock Four lan and one internet port on wifi router. Back panel of wifi router with lan and internet ports and one antenna. | CanStock](https://cdn.w600.comps.canstockphoto.com/four-lan-and-one-internet-port-on-wifi-picture_csp5786687.jpg)