![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
![fiber optic Internet,network cable connected to a router, internet concept, speed test Stock Photo | Adobe Stock fiber optic Internet,network cable connected to a router, internet concept, speed test Stock Photo | Adobe Stock](https://as1.ftcdn.net/v2/jpg/02/64/38/92/1000_F_264389272_MKjxr4srSyLVgeVPJz5OCYB5cJ7qyYfB.jpg)
fiber optic Internet,network cable connected to a router, internet concept, speed test Stock Photo | Adobe Stock
![Network Cable Tester NF-8209 Wire Tracker Network Tool Scan Cable Wiremap Tester CAT5 CAT6 Cable Length Measurement, PoE Testing, NCV Function: Amazon.com: Industrial & Scientific Network Cable Tester NF-8209 Wire Tracker Network Tool Scan Cable Wiremap Tester CAT5 CAT6 Cable Length Measurement, PoE Testing, NCV Function: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51evngn6f7L._AC_SY350_.jpg)
Network Cable Tester NF-8209 Wire Tracker Network Tool Scan Cable Wiremap Tester CAT5 CAT6 Cable Length Measurement, PoE Testing, NCV Function: Amazon.com: Industrial & Scientific
![Fiber Optic Internet. Network Cables Connected To a Router, Speed Test Concept. Wireless Internet Router with Connected Cables. Stock Photo - Image of internet, electric: 193355738 Fiber Optic Internet. Network Cables Connected To a Router, Speed Test Concept. Wireless Internet Router with Connected Cables. Stock Photo - Image of internet, electric: 193355738](https://thumbs.dreamstime.com/z/fiber-optic-internet-network-cables-connected-to-router-speed-test-concept-wireless-internet-router-connected-cables-fiber-193355738.jpg)
Fiber Optic Internet. Network Cables Connected To a Router, Speed Test Concept. Wireless Internet Router with Connected Cables. Stock Photo - Image of internet, electric: 193355738
![10pcs Rj45 Male To 2 Bnc Male Female Connector Adapter Router Test Cable Rg174 20cm - Connectors - AliExpress 10pcs Rj45 Male To 2 Bnc Male Female Connector Adapter Router Test Cable Rg174 20cm - Connectors - AliExpress](https://ae01.alicdn.com/kf/HTB1QbTvNVXXXXbvXFXXq6xXFXXXU/10pcs-RJ45-Male-to-2-BNC-Male-Female-Connector-Adapter-Router-Test-Cable-RG174-20cm.jpg_Q90.jpg_.webp)
10pcs Rj45 Male To 2 Bnc Male Female Connector Adapter Router Test Cable Rg174 20cm - Connectors - AliExpress
![Fiber optic internet. network cables connected to a router, posters for the wall • posters wireless, wire, telecom | myloview.com Fiber optic internet. network cables connected to a router, posters for the wall • posters wireless, wire, telecom | myloview.com](https://img.myloview.com/posters/fiber-optic-internet-network-cables-connected-to-a-router-speed-test-concept-wireless-internet-router-with-connected-cables-internet-security-700-218521810.jpg)
Fiber optic internet. network cables connected to a router, posters for the wall • posters wireless, wire, telecom | myloview.com
![Rf Wireless Ipx/sma-jj Coaxial Test Cable Ipex To Sma 1.13mm Router Modified Cable - Buy Rf Cable Ipx/sma,Ufl To Sma Cable,Router Modified Cable Product on Alibaba.com Rf Wireless Ipx/sma-jj Coaxial Test Cable Ipex To Sma 1.13mm Router Modified Cable - Buy Rf Cable Ipx/sma,Ufl To Sma Cable,Router Modified Cable Product on Alibaba.com](https://sc04.alicdn.com/kf/H38da495b6bc747968205cd0347539ab1S/228023460/H38da495b6bc747968205cd0347539ab1S.jpg)
Rf Wireless Ipx/sma-jj Coaxial Test Cable Ipex To Sma 1.13mm Router Modified Cable - Buy Rf Cable Ipx/sma,Ufl To Sma Cable,Router Modified Cable Product on Alibaba.com
![Fiber Optic Internet,network Cable Connected To a Router, Internet Concept, Speed Test Stock Image - Image of background, digital: 128723023 Fiber Optic Internet,network Cable Connected To a Router, Internet Concept, Speed Test Stock Image - Image of background, digital: 128723023](https://thumbs.dreamstime.com/z/fiber-optic-internet-network-cable-connected-to-router-internet-concept-speed-test-fiber-optic-internet-network-cable-connected-128723023.jpg)
Fiber Optic Internet,network Cable Connected To a Router, Internet Concept, Speed Test Stock Image - Image of background, digital: 128723023
![10pcs 50cm 2 Bnc Male Female To Rj45 Male Connector Adapter Router Test Cable Rg174 - Connectors - AliExpress 10pcs 50cm 2 Bnc Male Female To Rj45 Male Connector Adapter Router Test Cable Rg174 - Connectors - AliExpress](https://ae01.alicdn.com/kf/HTB1l3HSNVXXXXcVXpXXq6xXFXXXF/10pcs-50cm-2-BNC-Male-Female-to-RJ45-Male-Connector-Adapter-Router-Test-Cable-RG174.jpg_Q90.jpg_.webp)
10pcs 50cm 2 Bnc Male Female To Rj45 Male Connector Adapter Router Test Cable Rg174 - Connectors - AliExpress
![Free Shipping MT7628N Wireless HiLink Wifi Router Module Supports Openwrt Linux With Test Board HLK 7628N 128MB RAM/32MB Flash|Home Automation Kits| - AliExpress Free Shipping MT7628N Wireless HiLink Wifi Router Module Supports Openwrt Linux With Test Board HLK 7628N 128MB RAM/32MB Flash|Home Automation Kits| - AliExpress](https://ae01.alicdn.com/kf/Ha831e48ef1bb478ab5c5f8e95f9ba805S/Free-Shipping-MT7628N-Wireless-HiLink-Wifi-Router-Module-Supports-Openwrt-Linux-With-Test-Board-HLK-7628N.jpg_Q90.jpg_.webp)
Free Shipping MT7628N Wireless HiLink Wifi Router Module Supports Openwrt Linux With Test Board HLK 7628N 128MB RAM/32MB Flash|Home Automation Kits| - AliExpress
![Network Router with Ethernet Cable Close Up, Fiber Optic Internet, Speed Test Concept Stock Image - Image of networking, digital: 154373827 Network Router with Ethernet Cable Close Up, Fiber Optic Internet, Speed Test Concept Stock Image - Image of networking, digital: 154373827](https://thumbs.dreamstime.com/b/network-router-ethernet-cable-close-up-fiber-optic-internet-speed-test-concept-network-router-ethernet-cable-close-up-154373827.jpg)
Network Router with Ethernet Cable Close Up, Fiber Optic Internet, Speed Test Concept Stock Image - Image of networking, digital: 154373827
![Toma 3pcs BNC to BNC Male & Dual Alligator &Dual Test Hook Cable 500A 5A 50ohm with 8 Color Rings Coaxial Test Lead for Oscilloscope WiFi Wireless Router Monitor - Walmart.com Toma 3pcs BNC to BNC Male & Dual Alligator &Dual Test Hook Cable 500A 5A 50ohm with 8 Color Rings Coaxial Test Lead for Oscilloscope WiFi Wireless Router Monitor - Walmart.com](https://i5.walmartimages.com/asr/b13173ed-5901-40e6-9c69-30d270f69088.0735c969ae0c9b3e929707dc499420d7.jpeg)