我可以毫无问题地连接到我家的Sql Server（网络服务）或工作以外的任何其他地方。有时它会获得当下连接的精神，然后再次断开连接。
它一直给我这个错误：
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Cannot connect to winsqls02.cpt.wa.co.za.
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A network-related or instance-specific error occurred while establishing a
connection to SQL Server. The server was not found or was not accessible.
Verify that the instance name is correct and that SQL Server is configured
to allow remote connections. (provider: Named Pipes Provider, error: 40 -
Could not open a connection to SQL Server) (.Net SqlClient Data Provider)
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我已经尝试重新启动笔记本电脑，ping服务器，在工作时换到另一台路由器，但似乎没有任何工作。
这个问题可能有一个简单的原因，因为我似乎无法在互联网上找到任何答案。