I'm trying to connect to a service that uses basic HTTP authentication. I've configured my binding like this

  <bindings>
   <basicHttpBinding>
    <binding name ="binding">
     <security mode="TransportCredentialOnly">
      <transport clientCredentialType="Basic"/>
     </security>
    </binding>
   </basicHttpBinding>
 </bindings>

and i'm setting the credentials like this:

client.ClientCredentials.UserName.UserName = Settings.UserName;
client.ClientCredentials.UserName.Password = Settings.Password;

Sill when i make a request i get a "The HTTP request is unauthorized with client authentication scheme 'Basic'" fault back.

What am i doing wrong? (i don't have control over the service so all solutions must relate to the client configuration)