Semantic Kernel. 'The SSL connection could not be established, see inner exception.'

[GDT48]

I am trying Semantic Kernel with OpenAI in a Muai application. I am able to successfully get a simple prompt response using windows. However running under Android (emulator and local device) I get the error Microsoft.SemanticKernel.HttpOperationException: The SSL connection could not be established, see inner exception.

The following is the relevent code block, complete n Entry. Output goes to Label (Answer).

Error is raised at line:

var response = await kernel.InvokePromptAsync(((Entry)sender).Text);

As mentioned above code runs OK on Windows Machine but not on Android.

    public static IKernelBuilder builder = Kernel.CreateBuilder();
    public static Kernel kernel = builder
             .AddOpenAIChatCompletion("gpt-4o-mini", OpenAI_Key)
            .Build();

private async void Question_Completed(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(((Entry)sender).Text))
{
try
{
string request = ((Entry)sender).Text;
ActivityIsRunning = true;
var response = await kernel.InvokePromptAsync(((Entry)sender).Text);
Answer.Text += $"You: {((Entry)sender).Text}{Environment.NewLine}AI: {response.ToString()}{Environment.NewLine}{Environment.NewLine}";
((Entry)sender).Text = string.Empty;

        ActivityIsRunning = false;
    }
    catch (Exception)
    {

        throw;
    }

}

}
Full exception as follows:

{Microsoft.SemanticKernel.HttpOperationException: The SSL connection could not be established, see inner exception.
---> System.ClientModel.ClientResultException: The SSL connection could not be established, see inner exception.
---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception.
---> Interop+AndroidCrypto+SslException: Exception of type 'Interop+AndroidCrypto+SslException' was thrown.
--- End of inner exception stack trace ---
at System.Net.Security.SslStream.d__1501[[System.Net.Security.AsyncReadWriteAdapter, System.Net.Security, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].MoveNext()
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(QueueItem queueItem)
at System.Threading.Tasks.TaskCompletionSourceWithCancellation1.d__1[[System.Net.Http.HttpConnection, System.Net.Http, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].MoveNext()
at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
at System.ClientModel.Primitives.HttpClientPipelineTransport.ProcessSyncOrAsync(PipelineMessage message, Boolean async)
--- End of inner exception stack trace ---
at System.ClientModel.Primitives.HttpClientPipelineTransport.ProcessSyncOrAsync(PipelineMessage message, Boolean async)
at System.ClientModel.Primitives.HttpClientPipelineTransport.ProcessCoreAsync(PipelineMessage message)
at System.ClientModel.Primitives.PipelineTransport.ProcessSyncOrAsync(PipelineMessage message, Boolean async)
at System.ClientModel.Primitives.PipelineTransport.ProcessAsync(PipelineMessage message)
at System.ClientModel.Primitives.PipelineTransport.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex) at System.ClientModel.Primitives.PipelinePolicy.ProcessNextAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex)
at System.ClientModel.Primitives.ApiKeyAuthenticationPolicy.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex) at System.ClientModel.Primitives.PipelinePolicy.ProcessNextAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex)
at System.ClientModel.Primitives.ClientRetryPolicy.ProcessSyncOrAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex, Boolean async) at System.ClientModel.Primitives.ClientRetryPolicy.ProcessSyncOrAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex, Boolean async)
at System.ClientModel.Primitives.ClientRetryPolicy.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex) at GenericActionPipelinePolicy.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex)
at OpenAI.GenericActionPipelinePolicy.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex) at OpenAI.GenericActionPipelinePolicy.ProcessAsync(PipelineMessage message, IReadOnlyList1 pipeline, Int32 currentIndex)
at System.ClientModel.Primitives.ClientPipeline.SendAsync(PipelineMessage message)
at OpenAI.ClientPipelineExtensions.ProcessMessageAsync(ClientPipeline pipeline, PipelineMessage message, RequestOptions options)
at OpenAI.Chat.ChatClient.CompleteChatAsync(BinaryContent content, RequestOptions options)
at OpenAI.Chat.ChatClient.CompleteChatAsync(IEnumerable1 messages, ChatCompletionOptions options, CancellationToken cancellationToken) at Microsoft.SemanticKernel.Connectors.OpenAI.ClientCore.<RunRequestAsync>d__651[[System.ClientModel.ClientResult1[[OpenAI.Chat.ChatCompletion, OpenAI, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b4187f3e65366280]], System.ClientModel, Version=1.1.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8]].MoveNext()
--- End of inner exception stack trace ---
at Microsoft.SemanticKernel.Connectors.OpenAI.ClientCore.<RunRequestAsync>d__651[[System.ClientModel.ClientResult1[[OpenAI.Chat.ChatCompletion, OpenAI, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b4187f3e65366280]], System.ClientModel, Version=1.1.0.0, Culture=neutral, PublicKeyToken=92742159e12e44c8]].MoveNext()
at Microsoft.SemanticKernel.Connectors.OpenAI.ClientCore.GetChatMessageContentsAsync(String targetModel, ChatHistory chat, PromptExecutionSettings executionSettings, Kernel kernel, CancellationToken cancellationToken)
at Microsoft.SemanticKernel.KernelFunctionFromPrompt.GetChatCompletionResultAsync(IChatCompletionService chatCompletion, Kernel kernel, PromptRenderingResult promptRenderingResult, CancellationToken cancellationToken)
at Microsoft.SemanticKernel.KernelFunctionFromPrompt.InvokeCoreAsync(Kernel kernel, KernelArguments arguments, CancellationToken cancellationToken) at Microsoft.SemanticKernel.KernelFunction.<>c__DisplayClass21_0.<<InvokeAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
at Microsoft.SemanticKernel.Kernel.InvokeFilterOrFunctionAsync(NonNullCollection1 functionFilters, Func2 functionCallback, FunctionInvocationContext context, Int32 index)
at Microsoft.SemanticKernel.Kernel.OnFunctionInvocationAsync(KernelFunction function, KernelArguments arguments, FunctionResult functionResult, Func2 functionCallback, CancellationToken cancellationToken)
at Microsoft.SemanticKernel.KernelFunction.InvokeAsync(Kernel kernel, KernelArguments arguments, CancellationToken cancellationToken)
at OpenAISematicKernal.SimpleResponse.Question_Completed(Object sender, EventArgs e) in C:\VSProjects\OpenAISematicKernalApp\OpenAISematicKernal\Views\SimpleResponse.xaml.cs:line 42}
base: {System.Exception}
RequestMethod: (null)
RequestPayload: (null)
RequestUri: (null)
ResponseContent: (null)
StatusCode: null
I have search the internet and AI for a solution but unable to resolve. As I don't have a problem with running on Windows I'm guessing something Android specific but don't know what.