Error installing ATP Sensor on 2019 DC

Martin_Schvartzman has anything changed yet again?

we AGAIN have problems installing the agent on new Domain Controllers

The network connection is tested and ok.

I must say I'm getting a little tired of keeping on troubleshooting the installation of this specific agent while so many other agents install without problems.

why doesn't the agent just install initially, then it can start complaining  but at least we have something to work with.
the current error in the setup logfile is :

[2964:292C][2022-07-18T10:13:23]i000: 2022-07-18 08:13:23.7360 Debug DeploymentModel .ctor [\[]IsAfterRestartAndConfigured=False[\]]
[2964:26C8][2022-07-18T10:13:24]i000: 2022-07-18 08:13:24.5014 Error DeploymentModel ValidateCreateSensorAsync Microsoft.Tri.Infrastructure.ExtendedException: Sanitized exception: [\[]Type=System.Net.Http.HttpRequestExceptionMessage=kZbHZ02cunBcHiKyFrnbkg==StackTrace= at async Task<HttpResponseMessage> System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task<HttpResponseMessage> sendTask, HttpRequestMessage request, CancellationTokenSource cts, bool disposeCts)
at async Task<TResponse> Microsoft.Tri.Common.CommunicationWebClient.SendAsync<TResponse>(byte[\[][\]] requestBytes, int offset, int count)
at async Task<TResponse> Microsoft.Tri.Common.CommunicationWebClient.SendWithRetryAsync<TResponse>(byte[\[][\]] requestBytes, int offset, int count)InnerException=Microsoft.Tri.Infrastructure.ExtendedException: Sanitized exception: [\[]Type=System.Net.WebExceptionMessage=YWn4O7TiLMlSvbtZSOMfpg==StackTrace= at Stream System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, out TransportContext context)
at void System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)InnerException=Microsoft.Tri.Infrastructure.ExtendedException: Sanitized exception: [\[]Type=System.IO.IOExceptionMessage=nBkgxS0EDE8CUEg8Ec4cXw==StackTrace= at void System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
at void System.Net.PooledStream.EndWrite(IAsyncResult asyncResult)
at void System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)InnerException=Microsoft.Tri.Infrastructure.ExtendedException: Sanitized exception: [\[]Type=System.Net.Sockets.SocketExceptionMessage=kPgB8WP+JwtA6gCzvetX8A==StackTrace= at int System.Net.Sockets.Socket.EndReceive(IAsyncResult asyncResult)
at int System.Net.Sockets.NetworkStream.EndRead(IAsyncResult asyncResult)InnerException=[\]][\]][\]][\]]
at Microsoft.Tri.Common.CommunicationWebClient.<SendWithRetryAsync>d__9`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Tri.Common.CommunicationWebClient.<SendAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Tri.Sensor.Common.WorkspaceApplicationSensorApiDeploymentProxy.<SendAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Tri.Sensor.Deployment.Bundle.UI.DeploymentModel.<ValidateCreateSensorAsync>d__52.MoveNext() failed connecting to service. The issue can be caused by a transparent proxy configuration [\[]WorkspaceApplicationSensorApiEndpoint=Unspecified/***REMOVED***sensorapi.atp.azure.com:443[\]]

note: the 443 port connection to *sensorapi.atp.azure.com  is working..