Radius Authentication going through the wrong interface

[danielspa]

Hi,
Im trying to set up authentication through a RADIUS server, but the packets are beeing sent from the wwrong interface,

Im trying to connect through the LAN interface, which has a VPN tunnel to the RADIUS server, but when i try to test authentication i see the packets are sent from the WAN interface,

This are my configurations

Also one one of my other boxes, where the authentication is working, only users with no special charachters on their password can log in