I have tried on and off over a long time to set up VPN access so I can call on my NAS files using File Explorer and mapped directories. I have failed to get it over the line each time. Is there a simple or usual way of doing this? I have tried OpenVPN and QVPN but I guess I have done somenting wrong for it to fil each time.
Any assistance or pointers greatly appreciated
A VPN server should be installed on your router or other edge device, what do you have available?
If you have a router that supports Wireguard you can very easily set up a VPN. The other way to do it would be to run Tailscale from your NAS. Taiscale uses Wireguard and people rave about it.
Tailscale, easy to set-up.
You may refer to these two FAQs for setup guidance and equipment recommendations:
How to set up and use QVPN? | QNAP
How do I securely access my NAS from the Internet using QVPN? | QNAP
Running Wireguard on a Raspberry Pi works for me.
I have QVPN on my NAS and OpenVPN on my router
If you router offers OpenVPN services, jut use that to connect to your network and forget VPN on your QNAP.