Provisioning Member Owned Router with Residential Fiber EPON Service

I’m looking to switch my Xfinity EPON fiber service over to the new member-owned router option so I can connect my UniFi Cloud Gateway Fiber directly to the ONU instead of using the Xfinity gateway in bridge mode.

I chatted with support earlier, but they told me I could just plug my router directly into the ONU and it should work. I tried that, but my router isn’t getting a WAN IP.

From what I’ve read here, it sounds like there’s some provisioning that needs to happen on Xfinity’s end first.

Can someone help me get that switched over?

Thanks!