I re-installed my Orbi WiFi System, and gave it the SAME WiFi name that the Xfinity xFi Gateway (3rd Generation) was using. This allows everything in the home that was connecting to WiFi on the Xfinity xFi Gateway (3rd Generation) to continue working with the new orbi mesh network.
BRIDGE MODE
Online advice suggests putting the Xfinity xFi Gateway (3rd Generation) into BRIDGE MODE. I did that by going to http://10.0.0.1 and ENABLEing BRIDGE MODE. This disables the WiFi on the Xfinity xFi Gateway (3rd Generation), and does not allow you to use the xFi App to manage the network. You use the orbi app to do that.
In this configuration, I connected the Orbi Router, situated on the third floor, to the Xfinity xFi Gateway (3rd Generation), then I connected the Xfinity xFi Gateway (3rd Generation) to the Orbi Satellite #1, situated on the second floor, via an Ethernet cable using a backhaul connection. Orbi Satellite #2 then connects to Orbi Satellite #1 via the Orbi mesh network.
SPEED TESTS:
OFFICE
BEFORE(Wired Base eero) 230 Mbps
AFTER (Wired Base orbi) 230 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) WiFi 120/130/310 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) Wired 1 GB Port 950 Mbps
NEW (ORBI and Xfinity xFi Gateway 3rd Generation) Wired 560/740
LIVINGROOM
AFTER (Wired Satellite eero) 220 Mbps
AFTER (WiFi Satellite orbi) 210 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) 120 Mbps
xFi Pod Livingroom 66/78 Mbps
NEW (ORBI Satellite #1 WIRED in Livingroom and Xfinity xFi Gateway 3rd Generation) 310
KITCHEN
BEFORE (WiFi Satellite eero) 110 Mbps
AFTER (WiFi Satellite orbi) 210 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) 100/110 Mbps
xFi Pod Kitchen 85/48/24 Mbps
xFi Pod Kitchen CONFIG #2 51 mbps
NEW (ORBI and Xfinity xFi Gateway 3rd Generation) 250
DEN
BEFORE (WiFi Satellite eero) 59 Mbps
AFTER (WiFi Satellite orbi) 210 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) 100 Mbps
xFi Pod Den 60/38/38/31/81
xFi Pod Den CONFIG #2 85
NEW (ORBI Satellite #2 MESH and Xfinity xFi Gateway 3rd Generation) 330
FRONT DOOR
BEFORE 45 Mbps
AFTER 220 Mbps
UPDATE (Xfinity xFi Gateway 3rd Generation) 23 Mbps
xFi Pod 16/12 Mbps
xFi Pod Front Door CONFIG #2 65 Mbps
NEW (ORBI and Xfinity xFi Gateway 3rd Generation) 240
