WCF 服务出现 The remote server returned an error: (401) Unauthorized.解决思路

WCF 服务出现 The remote server returned an error: (401) Unauthorized.

win7下 wcf调用服务出现这个错误，

The remote server returned an error: (401) Unauthorized.

The HTTP request is unauthorized with client authentication scheme ‘Anonymous’. The authentication header received from the server was ‘.’. 

IIS该如何设置呢？

目前IIS 

网站->属性->目录安全性->身份验证方法: 同时选中”匿名访问”和”集成Windows身份验证”

CONFIG

<security mode=”Transport”>

<transport clientCredentialType=”None” proxyCredentialType=”None” realm=”” />

<message clientCredentialType=”UserName” algorithmSuite=”Default” />

</security>

应该是用户权限，以及文件夹读写权限的问题。