cannot sign in to openDNS account to set-up parental controls using NETGEAR Genie

Wow!! 

The first reported case of this was ‎2015-10-23 - wow, 2 years and still not resolution in sight.

After 2 days of trying to set up parental controls, I stumble across this forum post. I am receiving the exact same issue, "There was an error signing in, please make sure you're connected to the Internet and try again.". I did manage to get it working briefly, then I lose all connectivity (from all devices) until I reverted the DNS settings on the internet settings page. Now it won't let me sign it to OpenDNS via Genie at all, I can, however login to netgear.opendns.com and opendns.com websites. 

I spent just over £100 for this NightHawk X4S R7800 due to the advertised parental controls and gaming/QOS capabilities. So far it's been a complete waste of money compared to the PFSense box I was using previously (which by the way was FREE!). 

Versions: 

- Router: Nighthawk R7800 

- Router Firmware: 1.0.2.20

- Windows: 10 

- Genie App: 2.4.36 

*Edit* 

Have tried manually setting the OpenDNS (208.67.222.222 and 208.67.220.220) servers on both the router and the windows 10 device (where I'm using the Genie App).