I have just had ATT fiber added to home and connected my 4 year old RBS40 Orbi router to with ATT gateway modem (BGW320-500). I have reset the gateway to passthrough mode, placed the path mode to DHCPS-fixed, and entered the Orbi MAC address from the dropdown. Saved those settings on the ATT modem then plugged in my orbi to the ethernet port on the modem and repeated set up on my Orbi. I left my Orbi in router mode after trying AP mode and it did not connect. Internet connection is working well but I can only get speeds of 100mbps up and down from my orbi router.
The ATT modem has speeds of 300mbps up and down when I test it directly. Any thoughts on how to get to 300mbps with my orbi router.
