It says Openvpn in the settings but it won’t link up with the Open VPN android phone app.
On that router, under the advanced configuration, you can enable the openvpn server functionality. You will need to link your router with Dynamic DNS to a domain name, something like no-ip.com.
On that same interface page you will generate a security certificate and then there is an option to download the .ovpn configuration file.
Once you have downloaded that configuration file, send it to your phone as an email attachment and import it into the client for Android.
I recently bought a TP-Link Router which supported OpenVPN - the Archer AX6000. Returned it to Amazon after a few days and wrote a Review as to why.
In a nutshell, the OpenVPN is very very limited in its configuration. The ‘server’ end of the service is run remotely based on TP-Link servers (from my memory this is where the Client certificate is generated); you kinda attached/register your router to that remote server). The client ovpn is limited in options too. Ditto the DDNS Service you can use. I was previously used to a long list of supported DDNS services…here there were 2 - TPLink’s own free service and 1 other 3rd party paid for.
I reverted back to buying a new ASUS Router and then flashed it with Merlin’s Firmware. Ahhhh back to a fully fully configurable OpenVPN offering, with the Server end actually being run as a local service on your router.
I also had much more configuration options on things like wi-fi eg handover strength between extenders for example and QoS. There are advanced gaming options (by game eg CoD) too.
Apart from the OpenVPN the TP-Link was generally ‘ok’. So it’s not a ‘bad’ router. Hope that helps?
Is dynu.com similar?
If memory serves well they include openvpn 2.3 even in their newest models with --enable-small. You need to add cipher-fallback to openvpn 2.5 configs to make it work with this version