5Hey,
We have dynamics onprmise 9.1.10 working on https and our trace is overflowing with the error above,
The system is working fine but this prevent us to enable tracing when we realy need it,
Microsoft said in release 9.1.2 that this error fixed but its still happens :
System.ServiceModel.Security.SecurityNegotiationException: A call to SSPI failed, see inner exception. ---> System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception. ---> System.ComponentModel.Win32Exception: The target principal name is incorrect
> --- End of inner exception stack trace ---
> at System.Net.Security.NegoState.StartSendAuthResetSignal(LazyAsyncResult lazyResult, Byte[] message, Exception exception)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.ProcessAuthentication(LazyAsyncResult lazyResult)
> at System.Net.Security.NegotiateStream.AuthenticateAsClient(NetworkCredential credential, String targetName, ProtectionLevel requiredProtectionLevel, TokenImpersonationLevel allowedImpersonationLevel)
> at System.ServiceModel.Channels.WindowsStreamSecurityUpgradeProvider.WindowsStreamSecurityUpgradeInitiator.OnInitiateUpgrade(Stream stream, SecurityMessageProperty& remoteSecurity)
> --- End of inner exception stack trace ---</ExceptionString><InnerException><ExceptionType>System.Security.Authentication.AuthenticationException, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType><Message>A call to SSPI failed, see inner exception.</Message><StackTrace> at System.Net.Security.NegoState.StartSendAuthResetSignal(LazyAsyncResult lazyResult, Byte[] message, Exception exception)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.ProcessAuthentication(LazyAsyncResult lazyResult)
> at System.Net.Security.NegotiateStream.AuthenticateAsClient(NetworkCredential credential, String targetName, ProtectionLevel requiredProtectionLevel, TokenImpersonationLevel allowedImpersonationLevel)
> at System.ServiceModel.Channels.WindowsStreamSecurityUpgradeProvider.WindowsStreamSecurityUpgradeInitiator.OnInitiateUpgrade(Stream stream, SecurityMessageProperty&amp; remoteSecurity)</StackTrace><ExceptionString>System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception. ---&gt; System.ComponentModel.Win32Exception: The target principal name is incorrect
> --- End of inner exception stack trace ---
> at System.Net.Security.NegoState.StartSendAuthResetSignal(LazyAsyncResult lazyResult, Byte[] message, Exception exception)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.StartSendBlob(Byte[] message, LazyAsyncResult lazyResult)
> at System.Net.Security.NegoState.ProcessAuthentication(LazyAsyncResult lazyResult)
> at System.Net.Security.NegotiateStream.AuthenticateAsClient(NetworkCredential credential, String targetName, ProtectionLevel requiredProtectionLevel, TokenImpersonationLevel allowedImpersonationLevel)
> at System.ServiceModel.Channels.WindowsStreamSecurityUpgradeProvider.WindowsStreamSecurityUpgradeInitiator.OnInitiateUpgrade(Stream stream, SecurityMessageProperty&amp; remoteSecurity)</ExceptionString><InnerException><ExceptionType>System.ComponentModel.Win32Exception, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType><Message>The target principal name is incorrect</Message><StackTrace> at System.ServiceModel.Channels.WindowsStreamSecurityUpgradeProvider.WindowsStreamSecurityUpgradeInitiator.OnInitiateUpgrade(Stream stream, SecurityMessageProperty&amp; remoteSecurity)
> at System.ServiceModel.Channels.StreamSecurityUpgradeInitiatorBase.InitiateUpgrade(Stream stream)
> at System.ServiceModel.Channels.ConnectionUpgradeHelper.InitiateUpgrade(StreamUpgradeInitiator upgradeInitiator, IConnection&amp; connection, ClientFramingDecoder decoder, IDefaultCommunicationTimeouts defaultTimeouts, TimeoutHelper&amp; timeoutHelper)
> at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper&amp; timeoutHelper)
> at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper&amp; timeoutHelper)
> at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
> at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
> at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
> at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
> at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
> at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
> at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
> at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
> at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
> at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
> at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
> at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&amp; msgData, Int32 type)
> at Microsoft.Crm.Sandbox.ISandboxHost.Ping(SandboxCallInfo callInfo, SandboxHostConfiguration hostConfigurationInfo, SandboxWorkerConfiguration workerConfigurationInfo, Dictionary`2 sandboxAdditionalInfo, CrmTraceRemoteSettings remoteSettings, SandboxWorkerExecutionRecord&amp; workerExecutionRecord, String&amp; hostSidSddlForm)
> at Microsoft.Xrm.RemotePlugin.Wcf.Client.WcfHostClient.Ping(IsolationType isolationType)
> at Microsoft.Xrm.RemotePlugin.Client.SandboxHostHealthChecker.TryGetAuthMode(IIndex`2 channelByAuthMode, IsolationType isolationType, RemoteHost remoteHost, ILogger logger, ServiceStatus&amp; status, AuthMode&amp; validAuthMode)
> at Microsoft.Xrm.RemotePlugin.Client.SandboxHostHealthChecker.&lt;&gt;c__DisplayClass16_1.&lt;BackgroundHealthMonitorInternal&gt;b__2()
> at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute(ILogger logger, EventId eventId, ActivityType activityType, Action action, IEnumerable`1 additionalCustomProperties)
> at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute(ILogger logger, XrmTelemetryActivityType activityType, Action action)
> at Microsoft.Xrm.RemotePlugin.Client.SandboxHostHealthChecker.&lt;&gt;c__DisplayClass16_0.&lt;BackgroundHealthMonitorInternal&gt;b__0()
> at System.Threading.Tasks.Task.Execute()
> 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.Tasks.Task.ExecuteWithThreadLocal(Task&amp; currentTaskSlot)
> at System.Threading.Tasks.Task.ExecuteEntry(Boolean bPreventDoubleExecution)
> at System.Threading.ThreadPoolWorkQueue.Dispatch()
