I an stuck.
I set up Pivpn, openvpn, on a Pi 4 that I have. I have a dynamic DNS set up at NoIp. I can ping from
https://www.ipaddressguide.com/ both the host name and external ip address.
I cannot connect via my Andriod phone or my windows pc when on my mobile network. I have tried creating a new client with a new password in case I messed the first one up and didn't realize. Still nothing.
I did all the set up via SSH after I attached the Pi to the back of my router.