The client has disconnected; The specified network name is no longer available. (0x80070040) - asp.net-core

Question

I have noticed in the log file the following exception The client has disconnected. The possibility is very rare- ~3 times in a week so its hard to reproduce. Application runs on IIS windows server 2019.
The middleware witch handles exception:
public class RequestHandlingMiddleware
{
private readonly RequestDelegate _next;
public RequestHandlingMiddleware
(RequestDelegate next)
{
_next = next;
}
public async Task InvokeAsync(HttpContext httpContext, IWallesterLogger logger)
{
try
{
await _next(httpContext); //<- This line throws an exception
var rawRequestBody = await (new StreamReader(httpContext.Request.Body).ReadToEndAsync());
await logger.Log(WallesterLogSection.RequestInfoLog, httpContext.Request.Path.Value,
new
{
httpContext.Request.Path.Value,
httpContext.Request.Method,
rawRequestBody,
httpContext.Request.Headers
}
);
}
catch (Exception ex)
{
await HandleExceptionAsync(httpContext, ex, logger);
throw;
}
}
private async Task HandleExceptionAsync
(HttpContext context, Exception exception, IWallesterLogger logger)
{
await logger.Log(exception, WallesterLogSection.Exception);
}
}
// Extension method used to add the middleware to the HTTP request pipeline.
public static class LoggerkMiddlewareExtensions
{
public static IApplicationBuilder UseLoggerMiddleware(this IApplicationBuilder builder)
{
return builder.UseMiddleware<RequestHandlingMiddleware>();
}
}
Program.cs:
// Add services to the container.
var mocking = builder.Configuration.GetValue<bool>("Mocking");
var MockingDb = builder.Configuration.GetValue<bool>("MockingDb");
if (MockingDb)
{
builder.Services.AddDbContext<ApplicationDbContext>(x => x.UseInMemoryDatabase(databaseName: "ApplicationDb"));
}
else
{
var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
builder.Services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(connectionString));
}
builder.Services.AddDefaultIdentity<IdentityUser>(options => options.SignIn.RequireConfirmedAccount = true)
.AddEntityFrameworkStores<ApplicationDbContext>();
builder.Services.AddDatabaseDeveloperPageExceptionFilter();
builder.Services.AddControllersWithViews();
builder.Services.AddSingleton<IConfiguration>(builder.Configuration);
builder.Services.AddMemoryCache();
builder.Logging.ClearProviders();
builder.Logging.AddConsole();
var logger = new LoggerConfiguration()
.ReadFrom.Configuration(builder.Configuration)
.WriteTo.File($"logs/{DateTime.Now.ToString("dd-MM-yyyy-HH-mm-ss")}-logs.txt", rollingInterval: RollingInterval.Day)
.Enrich.FromLogContext()
.CreateLogger();
builder.Logging.AddSerilog(logger);
var app = builder.Build();
app.UseDeveloperExceptionPage();
app.UseStaticFiles();
app.UseLoggerMiddleware(); // <- add middleware logger
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
app.MapRazorPages();
app.Run();
And the controller action it tried to reach looks like this:
[HttpPost("event")]
public async Task<IActionResult> PostEvent(
[FromBody] object obj)
Full exception callstack:
Microsoft.AspNetCore.Connections.ConnectionResetException: The client has disconnected
---> System.Runtime.InteropServices.COMException (0x80070040): The specified network name is no longer available. (0x80070040)
--- End of inner exception stack trace ---
at Microsoft.AspNetCore.Server.IIS.Core.IO.AsyncIOOperation.GetResult(Int16 token)
at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext.ReadBody()
at System.IO.Pipelines.Pipe.GetReadResult(ReadResult& result)
at System.IO.Pipelines.Pipe.ReadAsync(CancellationToken token)
at System.IO.Pipelines.Pipe.DefaultPipeReader.ReadAsync(CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContext.ReadAsync(Memory`1 memory, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.IIS.Core.HttpRequestStream.ReadAsyncInternal(Memory`1 buffer, CancellationToken cancellationToken)
at System.Text.Json.JsonSerializer.ReadFromStreamAsync(Stream utf8Json, ReadBufferState bufferState, CancellationToken cancellationToken)
at System.Text.Json.JsonSerializer.ReadAllAsync[TValue](Stream utf8Json, JsonTypeInfo jsonTypeInfo, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonInputFormatter.ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)
at Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonInputFormatter.ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)
at Microsoft.AspNetCore.Mvc.ModelBinding.Binders.BodyModelBinder.BindModelAsync(ModelBindingContext bindingContext)
at Microsoft.AspNetCore.Mvc.ModelBinding.ParameterBinder.BindModelAsync(ActionContext actionContext, IModelBinder modelBinder, IValueProvider valueProvider, ParameterDescriptor parameter, ModelMetadata metadata, Object value, Object container)
at Microsoft.AspNetCore.Mvc.Controllers.ControllerBinderDelegateProvider.<>c__DisplayClass0_0.<<CreateBinderDelegate>g__Bind|0>d.MoveNext()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at WebApp.Middleware.RequestHandlingMiddleware.InvokeAsync(HttpContext httpContext, IWallesterLogger logger) in C:\Projects\Pasts\PNS\Wallester\WebApp\Middleware\RequestHandlingMiddleware.cs:line 19
at WebApp.Middleware.RequestHandlingMiddleware.InvokeAsync(HttpContext httpContext, IWallesterLogger logger) in C:\Projects\Pasts\PNS\Wallester\WebApp\Middleware\RequestHandlingMiddleware.cs:line 44
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)
From the callstack line:19 is code in the middleware await _next(httpContext); and line:44 is throw command in the catch block.
My question would be what could cause this error, and is there anything we could change to fix it?