远程对象问题,2003下没问题，移植到2005后提示身份验证问题,高手帮忙

Question

服务器端:
    TcpServerChannel channel=new TcpServerChannel(1234);
    ChannelServices.RegisterChannel(channel);
    RemotingConfiguration.RegisterWellKnownServiceType(typeof(DllAccessDB.Accessdb),"accessdb",WellKnownObjectMode.SingleCall);客户端:
    TcpChannel chan=new TcpChannel();
    ChannelServices.RegisterChannel(chan);
    DllAccessDB.Accessdb zxz=(DllAccessDB.Accessdb)Activator.GetObject(typeof(DllAccessDB.Accessdb),"tcp://"+ServerIP+":"+remotingport+"/accessdb");配置都是正确的,在VS2003下运行良好,没问题，但到了VS2005下调用时就说"服务器未验证客户端"问题,是怎么回事啊!