iOS VPN Client with RBR50 - Wrong Network assigned.

I have enabled the VPN server which works okay from my MacBook using Tunnelblick, but something has gone wrong on the iOS side of things.

This is the configuration of the Orbi

This is the VPN configuration: 

The problem is I can connect via the iOS application no problem, I can even access a few local services on my home network via IP address, but there is nothing going through to the internet at all.

2018-04-12 16:15:32 Sending PUSH_REQUEST to server...
2018-04-12 16:15:32 OPTIONS:
0 [dhcp-option] [DNS] [192.168.1.1] 
1 [route-gateway] [192.168.2.1] 
2 [topology] [subnet] 
3 [ping] [10] 
4 [ping-restart] [120] 
5 [redirect-gateway] [def1] 
6 [ifconfig] [192.168.2.2] [255.255.255.0] 

That is from the log on my iphone.   Should that be 192.168.2.x?   Shouldn't that be in the 192.168.1.x range?   My ip address is 192.168.2.2 which I have no idea where that comes from.   Either way, the end result is I can't access the internet when I connect to OpenVPN.  

This was all working until I updated to iOS 11.3 and had to setup OpenVPN again on my device, I don't know what has changed, but I can't browse the internet anymore.

I've followed the instructions, I've removed and tried it all again (including removing/adding the app, downloading the configuration).