XP加域时失败，提示错误53 找不到网络路径
查看日志发现来源kerberos ID为7的错误日志如下：
The kerberos subsystem encountered a PAC verification failure. This indicates that the PAC from the client YYY$ in realm xxx.com had a PAC which failed to verify or was modified. Contact your system administrator.
根据关键字百度，找到微软台湾的KB，http://support.microsoft.com/kb/883268/zh-tw/
按照解决方案对每个服务排查，发现ProtectedStorage服务的type为120，遂修改为20，重启电脑，成功加域！
本文转自 goldwinner 51CTO博客，原文链接：http://blog.51cto.com/355665/1605311，如需转载请自行联系原作者
