I have two ER605s:

One (Router 1) running an OpenVPN server on a non-NAT network with a static IP address.  This is accessible through the Windows OpenVPN client.  I can connect, I can see the remote network, I can see the internet, my public IP address is the one on the remote network - exactly what I want.  I've also set up a GL-iNet router to connect to this OpenVPN server, and I can see mostly what I need, although the internet DNS isn't working properly, I didn't labour on that too much as I only connected it to see if it would connect.

The other (Router 2) is running an OpenVPN client on a dynamic IP address, behind NAT.

I'm trying to connect Router 2 to the Router 1 network and no matter what I do, I cannot see the remote network in any way.  I've followed various sets of instructions to connect these two routers, but none of them ever seemed to fit my scenario exactly so I'm convinced that in my translation to my scenario, I'm missing something.

This is my tunnel list, it's showing as working there:

This is the client set up:

Any pointers on what else I might need to change?  Or any more information needed?

Thanks

Dave