After the bridge is established the vpn client will be unreachable, you can hold the reset button for 4s to revert the network and enter client’s web page to abort the VPN connection.
Thank you for the work you’ve done on this!
Is there firmware for the AR-750S and B1300 supporting this feature?
You can find AR750S firmware in the previous conversation. I will compile one for B1300 this weekend.