Hi bro,  do you mean that the internet IP address will change randomly, while it should be static to ensure the performance of OpenVPN?

If so, you can use DDNS, and bind the IP address to a domain name, and then you can use the domain name to setup OpenVPN.

Wish you good luck. 

Thanks for the response, Anton.

I already have a fixed IP from my ISP. That's what mystifies me.

John

Hey John,

Below is the instruction to setup Openvpn.

https://www.tp-link.com/en/faq-1750.html 

Per the instruction, it is suggested to configure Dynamic DNS Service (recommended) or assign a static IP address for your router’s WAN port, while cause you have the fixed IP already, you do not have to use DDNS anymore.

You can follow the instruction mentioned above to setup the OpenVPN.

Good luck. 

Yes, I've followed those instruction to the letter. Tp-link feel I should be able to see by internal network but so far I'm out of luck.

John

FYI this is what tp-link advised:

"If the VPN client want to access to the PC which is located in the LAN side of the VR600v router, has an IP of 10.0.0.5, there are different situations:

Case one: There is a server built in the PC (10.0.0.5), e.g. a ftp server.
a) If the VPN clinet is a mobile device, you need to install a corresponding app on the phone to access to the server. You will be able to find the related app from app store according to the server type in your PC.
b) If the VPN client is a computer, such as a Windows, when it connect to the VPN successfully, you will be able to access to the internal server as a normal computer within the LAN.

Case two: There is no server guilt in the PC (10.0.0.5).
In this case, a mobile VPN cilent will not be able to access the PC.
If the VPN client is also a computer, you can try to access the 10.0.0.5 via the remote desktop."

John

what is the point? I think he just explained you the potential situations; which case you belong to? Reply to his email and figure it out.

Finger crossed.