Netgear R6100 AP Mode Not Getting IP Behind Xfinity Gateway

Hi all,

I’m trying to set up my Netgear R6100 as a Wi-Fi access point behind my Xfinity gateway. I enabled Wireless AP mode on the R6100, connected Xfinity LAN → Netgear LAN, but now devices connecting to Netgear show a 169.254.x.x IP and I cannot access http://routerlogin.net.

Things I’ve tried:

- Factory reset R6100

- Different LAN ports on both devices

- Restarting Xfinity and R6100 in correct order

- Checking that Xfinity DHCP is enabled

- upgrading netgear R6100 firmware

Question: Has anyone successfully set up R6100 as an AP behind Xfinity? Any tips on getting it to receive a proper IP from the gateway?

Thanks!