您好，
请尝试关闭防火墙或者打开相应的端口然后再试，如果您没有安装过SMB建议的hotfix 请安装以下这些更新然后再问题是否存在。
List of currently available hotfixes for the File Services technologies in Windows Server 2008 and in Windows Server 2008 R2
MAC 访问SMB 要求的防火墙端口。
How to connect with File Sharing on your Mac
谢谢。
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