Failed to connect SqlServer database with DirectQuery

• Steps
  1. Get Data->SQL Server Database
  2. fill in Server with [servername]:[port]
  3. slect DirectQuery as Data Connectivity Mode,click OK
  4. fill in accounts and connect 
  5. select one table in navigator panel,and click Load
• Results
  1. failed to load the model
• Error Log

Release:
July 2021

Product Version:
2.95.804.0 (21.07) (x64)

Error Message:
We couldn't connect to your DirectQuery data source or internal model. Double-check that your server and database names are correct, and that you have permission to access them.

Error Message Detail:
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: SQL Network Interfaces, error: 25 - Connection string is not valid);The parameter is incorrect. The exception was raised by the IDbConnection interface.

Stack Trace:
Microsoft.PowerBI.ReportingServicesHost.CannotRetrieveModelException: An error occurred while loading the model. Verify that the connection information is correct and that you have permissions to access the data source. ---> Microsoft.PowerBI.DataExtension.Contracts.DataExtensionException: Failed to get CSDL. ---> MsolapWrapper.MsolapWrapperException: Failure encountered while getting schema
at MsolapWrapper.Utils.ThrowErrorIfHrFailed(Int32 hr, String message)
at MsolapWrapper.CDbSchemaRowsetWrapper.ExecuteSchemaRowset(Guid schema, Object[] restrictions, PropertySetCollection propSets)
at MsolapWrapper.SchemaCommand.ExecuteReader(Guid schema, Object[] restrictions)
at MsolapWrapper.SchemaCommand.GetModelMetadata(Object[] restrictions)
at Microsoft.PowerBI.DataExtension.Msolap.SchemaCommand.GetModelMetadata(String catalogName, String perspectiveName, String supportedVersion, Boolean ignoreTranslations)
--- End of inner exception stack trace ---
at Microsoft.PowerBI.DataExtension.Msolap.SchemaCommand.GetModelMetadata(String catalogName, String perspectiveName, String supportedVersion, Boolean ignoreTranslations)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.<>c__DisplayClass9_0.<GetModelMetadata>b__0(IDbSchemaCommand command)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.ExecuteSchemaCommand[T](ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, IConnectionUserImpersonator connectionUserImpersonator, QueryExecutionOptionsBase queryExecutionOptions, ITelemetryService telemetryService, Func`2 action, String failTelemetryMessage, ServiceErrorStatusCode statusCode, ExploreBaseEvent exploreEvent)
--- End of inner exception stack trace ---
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.ExecuteSchemaCommand[T](ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, IConnectionUserImpersonator connectionUserImpersonator, QueryExecutionOptionsBase queryExecutionOptions, ITelemetryService telemetryService, Func`2 action, String failTelemetryMessage, ServiceErrorStatusCode statusCode, ExploreBaseEvent exploreEvent)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.<>c__DisplayClass9_0.<GetModelMetadata>b__1(ExploreBaseEvent timedEvent)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.<>c__DisplayClass4_0`1.<RunInActivity>b__0(ExploreBaseEvent activity)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.RunInActivity(String activityName, Action`1 action)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.RunInActivity[T](String activityName, Func`2 action)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.GetModelMetadata(ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, String modelMetadataVersion, Boolean ignoreTranslations, QueryExecutionOptionsBase queryExecutionOptions, IConnectionUserImpersonator connectionUserImpersonator, ITelemetryService telemetryService)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetModelString(String modelMetadataVersion, Nullable`1 ignoreTranslations)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetModelAsStream(String modelMetadataVersion, Nullable`1 ignoreTranslations)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetConceptualSchema(String modelMetadataVersion, Nullable`1 ignoreTranslations, ParseConceptualSchema parse, ModelDaxCapabilities& capabilities)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.GetConceptualSchemaImpl(IPowerViewHandler powerViewHandler, String databaseID, String maxModelMetadataVersion, Nullable`1 ignoreTranslations, ModelDaxCapabilities& capabilities)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.<>c__DisplayClass37_0.<GetConceptualSchemaAndHandleExceptions>b__0()
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.HandleModelRetrievalExceptions[T](Func`1 wrappedCall, String databaseID, ServiceErrorStatusCode statusCode, FeatureSwitches featureSwitches)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.GetConceptualSchemaAndHandleExceptions(IPowerViewHandler powerViewHandler, String databaseID, String maxModelMetadataVersion, Nullable`1 ignoreTranslations, ModelDaxCapabilities& daxCapabilities)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.<>c__DisplayClass26_0.<TryGetConceptualSchema>b__0()
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.TryGetStructureImpl[T](Int64 modelID, ServiceErrorExtractor extractor, Func`1 getStructure, Func`2 validateStructure, T& structure, ServiceError& serviceError)

Invocation Stack Trace:
at Microsoft.Mashup.Host.Document.ExceptionExtensions.GetCurrentInvocationStackTrace()
at Microsoft.Mashup.Client.UI.Shared.StackTraceInfo..ctor(String exceptionStackTrace, String invocationStackTrace, String exceptionMessage)
at Microsoft.PowerBI.Client.Windows.ErrorHostService.GetErrorDetails(ShowErrorDialogArgs args)
at Microsoft.PowerBI.Client.Windows.ErrorHostService.<>c__DisplayClass5_0.<ShowErrorDialogCore>b__0()
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
at System.Windows.Forms.WindowsFormsSynchronizationContext.Send(SendOrPostCallback d, Object state)
at Microsoft.PowerBI.Client.Windows.Services.UIBlockingService.AllowModalDialogs(Action action)
at Microsoft.PowerBI.Client.Windows.ErrorHostService.<ShowErrorDialogCore>d__5.MoveNext()
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.PowerBI.Client.Windows.ErrorHostService.ShowErrorDialogCore(String errorDialogArgs)
at Microsoft.PowerBI.Client.Windows.HostServiceDispatcher.<>c__DisplayClass6_0`1.<ExecuteOnUIThread>b__0()
at Microsoft.PowerBI.Client.Windows.HostServiceDispatcher.<>c__DisplayClass5_0.<ExecuteOnUIThread>b__0(Object t)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
at System.Windows.Forms.Control.InvokeMarshaledCallbacks()
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
at Microsoft.Mashup.Client.UI.Shared.WindowManager.ShowModal[T](T dialog, Func`1 showModalFunction)
at Microsoft.PowerBI.Client.Program.<>c__DisplayClass4_0.<Main>b__1()
at Microsoft.PowerBI.Client.Windows.IExceptionHandlerExtensions.<>c__DisplayClass3_0.<HandleExceptionsWithNestedTasks>b__0()
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)
at Microsoft.PowerBI.Client.Program.Main(String[] args)

OS Version:
Microsoft Windows NT 10.0.17763.0 (x64 en-US)

CLR Version:
4.7 or later [Release Number = 528049]

Peak Virtual Memory:
38 GB

Private Memory:
507 MB

Peak Working Set:
737 MB

IE Version:
11.1790.17763.0

User ID:
f7541f9d-77db-476a-a5f0-d9bbedc7f564

Workbook Package Info:
1* - en-US, Query Groups: 0, fastCombine: Disabled, runBackgroundAnalysis: True.

Telemetry Enabled:
True

Model Default Mode:
DirectQuery

Model Version:
PowerBI_V3

Enabled Preview Features:
PBI_JsonTableInference
PBI_NewWebTableInference
PBI_ImportTextByExample
PBI_ExcelTableInference
PBI_rdlNativeVisual

Disabled Preview Features:
PBI_shapeMapVisualEnabled
PBI_SpanishLinguisticsEnabled
PBI_qnaLiveConnect
PBI_azureMapVisual
PBI_dataPointLassoSelect
PBI_compositeModelsOverAS
PBI_dynamicParameters
PBI_enhancedTooltips
PBI_enableWebView2

Disabled DirectQuery Options:
TreatHanaAsRelationalSource

Cloud:
GlobalCloud

DPI Scale:
100%

Supported Services:
Power BI

Formulas: