Hello,
thank you for your reply.
My goal would be to setup the AR-750S-EXT as a PIA VPN for some LAN clients.
For all LAN clients protection with Adguardhome with DNS encryption. DoT/DoH.
And last but not least, in case of provider troubles, my cell as backup.

Thank you,

Grtzz tom

PS: It’s a complete new world, DNS. but love it.