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Forum Discussion
Orbi RBR20 suddenly not connecting to internet
Orbi RBR20 with 2 sattellites purchased 10/2018. Connected to an Arris SB8200 DOCCIS 3.1 modem (installed 08/2019). Cox ISP. Came home from work today to find no internet connection. Wifi works ...
Unless you have specifically subscribed to some sort of enhanced (more costly) service, only one of the Arris ethernet ports is going to be working.
My assumption is that you are testing by unplugging the Orbi and plugging other devicesto the jack where the Orbi was connected.
The ethernet ports on the back of the Arris use color to indicate the speed of the connection: Green for Gigabit, Amber for 10/100mb.
(See page 13 of the manual https://arris.my.salesforce.com/sfc/p/#30000000kUAL/a/a0000000QLch/9Nh17rOX59OqJRfv4_PGHkAjUvwIaGiOxdcQQOp_Tyk ) I sincerely wish Netgear had put LED's on the Orbi ethernet ports.
This appears to indicate that the modem detects the Orbi connection. You have already done the logical first step: to confirm that the modem is working. My next step would be to power off the Orbi and modem, power on the modem and let it go through the usual startup until all the lights are correct, then connect and power on the Orbi. If the Orbi top ring does not "Turn Blue", then get out the paperclip and perform a "Factory Reset".