Nighthawk R6700v3 PPPoE setup for Fidium fiber?

[future_vision]

I have new Fidium service but opted to use my Netgear Nighthawk R6700v3 router instead of their router which I understand is pretty locked down. Problem is I can't seem to get internet working over Wifi or Ethernet. I have my PPPoE credentials and the routers says internet service is good but all of the switches > PC's and wireless devices cannot access the internet. We're moving over from Xfinity using a cable modem so maybe there is some setting from that setup I need to clear? Maybe I need the most recent firmware(I am actually using a older version on purpose with Xfinity since a new version, at the time, degraded performance.)

[FURRYe38]

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?

Try using DHCP instead of PPPoE on the NG router...

[future_vision]

Netgear Nighthawk R6700v3
Firmware Version
V1.0.2.52_1.0.39

Fidium ONT

AdTran SDX622v XGSPON ONT

Supposedly authentication happens with PPPoE. They are switching over to MAC and serial in the near future.

[FURRYe38]

Can they move the PPPoE to the ONT and then let the NG router use DHCP? 

[future_vision]

I don't believe so. I'm not even sure I can access the ONT

[FURRYe38]

For this kind of ISP service, the R6700v3 is using older generation hardware so even if you got this to work, it may not work well or to spec. I would recommend you get into a newer generation router to use with this ISP service. 

[future_vision]

Any recommendations?

[FURRYe38]

I've heard good things about the RAX30 and 40 series routers working well.

@microchip8