I use openvpn tcp client, i have 2 provider: FastestVPN and Ivacy VPN.
configuring router from scratch, all works good.
I have set VLAN policy (regular IP on primary wifi and VPN IP on guest wifi).
If I use Adguard (ON) everything works.
When I switch Adguard OFF the VPN client connects but I can’t access to the internet (DNS probe error from browser).
If I turned ON Adguard again, everything works.
Now I reset my router and everything works ok, but i didn’t touch Adguard for now.
Anyway, this router is awesome, I have bought this and Opal, you guys from GL.inet rock!