Hi MC,
I've been using the ASUS AC53U for 10 months. I work remotely from Africa for a large Swiss company.
I connect the VPN client to my NordVPN account (via OpenVPN). The setup is very easy and quick
https://support.nordvpn.com/Connectivi...Then I connect to the company's VPN network via the Swiss NordVPN server.
This VPN in VPN connection also works well, but requires a high bandwidth for the 4G connection to carry out Teams and Zoom video calls. Here in Africa I have a mobile network with download 60 Mbps / upload 30 Mbps.
Let me know if you need any further help or information.
Flo