铭锐OA办公软件使用中出错：unhandled exception has occurred

铭锐OA办公软件使用过程中经常弹出如下Microsoft.NET Framework：错误提示：



Microsoft.NET Framework: unhandled exception has occurred in  your application. if you click continue, the application will ignore this error and attempt to continue. if you click quit, the application will close immediately.

a network-related or instance-specifice 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. (proveder: named pipes provider, error: 40 - could not open a connection to sql server).
翻译：
Microsoft .NETFramework：应用程序中出现未处理异常。如果单击“继续”，应用程序将忽略此错误并尝试继续。如果单击“退出”，应用程序将立即关闭。

在建立与SQLServer的连接时发生网络相关或实例指定错误。找不到服务器或无法访问服务器。验证实例名称是否正确，并且SQLServer配置为允许远程连接。（冒名顶替：命名管道提供程序，错误：40——无法打开连接到SQL Server）。