![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
![Network router with ethernet cable close up, fiber optic Internet, speed test concept Stock Photo | Adobe Stock Network router with ethernet cable close up, fiber optic Internet, speed test concept Stock Photo | Adobe Stock](https://as1.ftcdn.net/v2/jpg/02/64/38/92/500_F_264389294_OmTqJ0JbkMQ0OK0vYO7wwk8EUT99S1Jg.jpg)
Network router with ethernet cable close up, fiber optic Internet, speed test concept Stock Photo | Adobe Stock
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fiber optic Internet, Modem router network hub . cable connected router. internet connection, data, speed test concept. ethernet cables plugged close up. computer network technology Theme. Stock Photo | Adobe Stock
![This is screenshot from my internet speed test. I play on laptop, with 5G router being 2meters from me. Yet my games are still lagging (Fifa 21 for example). Is anyone else This is screenshot from my internet speed test. I play on laptop, with 5G router being 2meters from me. Yet my games are still lagging (Fifa 21 for example). Is anyone else](https://preview.redd.it/35h4r2i0gof81.png?width=640&crop=smart&auto=webp&s=f438a393e6fdbfcb1a73a5bb06f7e316cf2d0d87)
This is screenshot from my internet speed test. I play on laptop, with 5G router being 2meters from me. Yet my games are still lagging (Fifa 21 for example). Is anyone else
![Fiber Optic Internet. Network Cables Connected To a Router. Wireless Internet Router with Connected Cables. Internet Security. Stock Image - Image of broadband, hacker: 193361031 Fiber Optic Internet. Network Cables Connected To a Router. Wireless Internet Router with Connected Cables. Internet Security. Stock Image - Image of broadband, hacker: 193361031](https://thumbs.dreamstime.com/z/fiber-optic-internet-network-cables-connected-to-router-wireless-security-speed-test-concept-193361031.jpg)