![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
![Huawei Ar129cgvw-l 4g Fdd-lte Bands 1/2/3/4/5/7/8/20 1vdsl+2fxs+2simcard+ 4ge+wifi 2.4g+5g+usb2.0 Enterprise Router - 3g/4g Routers - AliExpress Huawei Ar129cgvw-l 4g Fdd-lte Bands 1/2/3/4/5/7/8/20 1vdsl+2fxs+2simcard+ 4ge+wifi 2.4g+5g+usb2.0 Enterprise Router - 3g/4g Routers - AliExpress](https://ae01.alicdn.com/kf/HTB191llX.LrK1Rjy1zbq6AenFXak/Huawei-AR129CGVW-L-4G-FDD-LTE-Bands-1-2-3-4-5-7-8-20-1VDSL.jpg_.webp)
Huawei Ar129cgvw-l 4g Fdd-lte Bands 1/2/3/4/5/7/8/20 1vdsl+2fxs+2simcard+ 4ge+wifi 2.4g+5g+usb2.0 Enterprise Router - 3g/4g Routers - AliExpress
![Amazon.com: Actiontec GT784WN-NF Wireless N DSL Modem Router - 300 Mbps - External Detachable Antenna (Renewed) : Electronics Amazon.com: Actiontec GT784WN-NF Wireless N DSL Modem Router - 300 Mbps - External Detachable Antenna (Renewed) : Electronics](https://m.media-amazon.com/images/I/814Xu4XbNJL.jpg)