I'm authenticating users in RADIUS against LDAP, if I login from computer with 802.1x configured and users and password taken from domain automatic. Im getting wrong authenticated because the login has the following chain.

DOMAIN\\Users

How can i avoid that radius read the prefix?

I've tried to introduce the option prefix in /etc/sites-enable/default , but its getting me back errors because of wrong way to introduce that line.

Can any help me?

Thanks very much