RBR850 VPN not connecting to Iphone/Ipads

You have discovered the solution.  Edit the configuration file and replace the IP of the Orbi router with the IP of the internet router

When the Orbi generates configuration files, it is programmed to use the IP of its WAN interface.  This is one of the special situations which is affected when a user has "two routers" (often referred to as a "Double NAT" because the first router hides all devices connected to it behind Network Address Translation and the second router then does the same thing with devices connected to it).  Other applications that are affected are things like sharing media files on the internet and certain types of internet gaming.

The typical recommendation is to remove the Double NAT by

• Placing the internet router in "bridge" or "pass-through" mode.
• Placing the Orbi router in Access Point (AP) mode.
• Placing the Orbi router in the internet router DMZ.

Putting the Orbi into AP mode will not work in this solution because OpenVPN is not available in AP mode.

The easiest solution in this specific situation is to manually change the configuration files.