Hello, I have a Max Transit Duo (MTD) that I am running OpenVPN sever on and my iPhone will connect to it via OpenVPN only when both devices are using the same local Wifi network (MTD is using Wifi as WAN). Once I switch both devices to use a cellular network, they will no longer connect via OpenVPN.
I suspected it was the IP address, but I am using No-IP to host the floating IP address (Dynamic DNS Service) and I think it is pinging the correct address. I say ‘I think’ since if I open Chrome and ask it for my IP address, it matches the IP address of my No-IP address however if I go into my MTD details page of the cellular connection, it shows a different IP address. To rule this out, I edited the OpenVPN client file ‘remote’ sting and manually entered and tested both IP addresses, but neither address allows me to connect back to my MTD router.
Is there another setting to allow OpenVPN server to run on my MTD router while on cellular data?