Remoting very slow on domain based security

Question

Hello. I'have a remoting application, using TcpChannel. It works well if client and server application run in a local security context. When there's a domain based context, the client application takes 5 to 7 minutes to have the remoting object reference back. After that, remote calls on the remote object are fast. I guess that remoting need to fulfil some security processung, that for my application is not needed. How can I disable this controls and have the connection go fast bypassing any authentication mechamism?