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ORBI disables wired connection
WIRED LAN CONNECTION DOESN'T WORK WHEN ORBI IS ACTIVATED -- PLEASE HELP!! My new Xfinity modem worked great, and in order to provide excellent WiFi throughout home, I purchased ORBI AC3000 Router...
The original setup, with Orbi connected to the modem and the switch connected to one of the Orbi LAN ports should have worked. The only "issues" are (1) that the Orbi is going to issue entirely different IP addresses to every device than the modem did, and (2) that because of having two routers back-to-back, things like VPN and hosting web servers will fail. Since this did not work...
An alternative is to leave the original setup in place, i.e. modem connected to switch. Connect the Orbi to the switch and place the Orbi in Access Point (AP) mode. This means (1) the modem continues to provide IP addresses to everything, including the Orbi and anything connected over WiFi, and (2) router services like port forwarding and VPN will be done on the modem, not the Orbi.
Perhaps I am not understanding. The Xfinity XB6 gateway is a combination modem/router/telephone/WiFi device, with two ethernet ports.
When it is put into bridge mode (sometimes called "passthrough" mode), it is no longer a "router" or a WiFi host. Therefore anything connected to the other ethernet port is not going to do anything.
Since "wired connections throughout the home" is mentioned, does that indicate there is an ethernet switch connected to the XB6 on one port and the Orbi on another port?
If this is the case, then the simple solution is to move the ethernet switch from the XB6 to one of the Orbi LAN ports. The WAN (Yellow) Orbi port goes to the XB6 and the switch connects to an Orbi LAN port.
I neglected to mention that having two routers and two WiFi networks is not recommended. Either the XB6 or the Orbi needs to be "not a router". If you simply LOVE the routing capability of the Xfinity, then the Orbi should be put in AP mode. (The Xfinity WiFi still needs to be turned off.) If you do not care about the Xfinity routing functions, then it goes into bridge mode and the Orbi becomes the only router.