![Amazon.com: ARRIS SURFboard SBG6900AC Docsis 3.0 16x4 Cable Modem/ Wi-Fi AC1900 Router - Retail Packaging - White : Electronics Amazon.com: ARRIS SURFboard SBG6900AC Docsis 3.0 16x4 Cable Modem/ Wi-Fi AC1900 Router - Retail Packaging - White : Electronics](https://m.media-amazon.com/images/I/81uLLrCEwpL._AC_UF350,350_QL80_.jpg)
Amazon.com: ARRIS SURFboard SBG6900AC Docsis 3.0 16x4 Cable Modem/ Wi-Fi AC1900 Router - Retail Packaging - White : Electronics
![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
![Amazon.com: NETGEAR Cable Modem WiFi Router Combo C6220 - Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 200 Mbps | AC1200 WiFi Speed | DOCSIS 3.0 : Electronics Amazon.com: NETGEAR Cable Modem WiFi Router Combo C6220 - Compatible With All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | For Cable Plans Up to 200 Mbps | AC1200 WiFi Speed | DOCSIS 3.0 : Electronics](https://m.media-amazon.com/images/I/51lp6Y7y1ML._AC_UF894,1000_QL80_.jpg)