New Dual Lite will not setup via WiFi

Hello. I am trying to set up my brand new dual lite via Wi-Fi. I’m able to connect my iPhone to the Tablo’s Wi-Fi, select my home network, and enter my network password, but the Tablo will not connect to the 2.4 or 5.0 networks. I get an error message telling me to check my Internet connection, but my Internet connection is fine Everything works correctly if I plug in directly to the router, but I need it to be wireless. The Tablo is updated to the latest firmware as of October 16 ‘18. I have a Netgear nighthawk R 7000 with the latest firmware as well. I have tried power cycling the router and Tablo and have done a factory reset on the Tablo. Has anyone and countered this and has a solution before I call tech-support? Thank you for your help.

Can you update the firmware on the R7000 and then factory reset it?

Do you setup your 2.4 GHz and 5 GHz bands as different SSIDs (aka different wifi network names).

Yes, the firmware is the latest, and I’ve factory reset the router and Tablo. Yes, the networks are different names and passwords.

And last time to confirm - your ISP modem is in bridge mode? Bridge mode turns off the router function on your ISP modem. As in you’re not engaging in Double NAT (aka router behind a router).

I’m using a Cisco DPC3008 which I own, so I think it’s always in bridge mode.

Does the WAN IP on the R7000 start with 192.x.x.x?

Yes.

192.x.x.x is an internal IP which means your Cisco modem is not in bridge mode. The Netgear router should be getting an external IP from your ISP.

You are using Double NAT, which can cause problems. For example, if you ever get your Tablo setup the Tablo Connect (remote viewing) feature will never work. This is cause you can’t setup port forwarding properly with Double NAT.

Read this on how to fix it:
https://kb.netgear.com/30186/What-is-Double-NAT

More on Double NAT and how to fix it:

http://www.practicallynetworked.com/networking/fixing_double_nat.htm

More - everywhere basically says put your modem in bridge mode.

https://support.xbox.com/en-US/xbox-one/networking/double-nat-detected

Also just to be clear I am not referring to the web interface of the Netgear router which may be 192.168.0.1 or 192.168.1.1 (this is very different than the WAN IP of the Netgear router).

I am specially referrring to on the Netgear internet connection details page the WAN IP starts with 192.