GT-AX11000 Pro IPV6 Passthrough not working

[pained]

I recently had AT&T Fiber installed and have a BGW320-505 modem, but I can't seem to get IPv6 to work.

I have my AT&T modem connected to my GT-AX11000 Pro, which is in passthrough mode.

In my Asus router, IPV6 settings I've tried passthrough mode, native mode, changing DNS settings, and a factory reset, but nothing seems to work.

When I connect directly to my AT&T modem, I get 10/10 on the IPv6 test, but when connected to my Asus router, I get 0/10.

Is anyone else having similar issues?

Is anyone having similar issues?

[Saltgrass]

Did you get the IPv6 configuration from AT&T?

I have Spectrum and the router uses native and stateless, but AT&T may be different.

[pained]

I didn't get the config through AT&T but I remember using passthrough or native when I had fiber at my previous house. 

For some reason, this time, I can't get it to work. I did try native and stateless, but that doesn't work. 

In the Asus IPV6 setup article if my Connection type is set to automatic IP then for IPv6 it should be set to Passthrough. 

[jzchen]

Check the IP Passthrough and make sure it actually assigned the WAN address to your AX11000 Pro.  Sometimes these RGs give a local address unless you reboot the RG then maybe 15-20 seconds later the ASUS router.

[pained]

I checked that, the WAN IP on my AT&T modem is showing up as WAN IP for my Asus router.

[Saltgrass]

I bring this up because several years ago, I was bypassing the Wi-Fi part of Spectrum Gateway.  It needed something so the router could identify itself as part of the same device.  AT&T may not need this, but are there any numbers you could put in this section?

WAN-Internet Connection, bottom of page for Special Requirements from ISP.

[pained]

I see the section that says Special Requirements from ISP but I'm not sure what I would fill out in that spot. I'll probably call my ISP and Asus tomorrow and see what they recommend. 

[Saltgrass]

Check the bottom of the AT&T device to see if it has a MAC address.

[pained]

yup, it does have a MAC address on the bottom

[Saltgrass]

I don't think it will hurt, although it may not help, to enter that MAC address in the ISP requirements section.