diff --git a/src/Hosting/Hosting/test/Internal/HostingEventSourceTests.cs b/src/Hosting/Hosting/test/Internal/HostingEventSourceTests.cs
index 32b51d8a95..9e10b7f410 100644
--- a/src/Hosting/Hosting/test/Internal/HostingEventSourceTests.cs
+++ b/src/Hosting/Hosting/test/Internal/HostingEventSourceTests.cs
@@ -1,10 +1,11 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
 using System.Diagnostics.Tracing;
 using System.Reflection;
 using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Testing.xunit;
 using Xunit;
 
 namespace Microsoft.AspNetCore.Hosting.Internal
@@ -107,6 +108,7 @@ namespace Microsoft.AspNetCore.Hosting.Internal
 
         [Theory]
         [MemberData(nameof(RequestStartData))]
+        [Flaky("https://github.com/aspnet/AspNetCore-Internal/issues/2040", "All")]
         public void RequestStart(DefaultHttpContext httpContext, string[] expected)
         {
             // Arrange
diff --git a/src/SignalR/common/Http.Connections/test/HttpConnectionDispatcherTests.cs b/src/SignalR/common/Http.Connections/test/HttpConnectionDispatcherTests.cs
index 668229043a..95b971e935 100644
--- a/src/SignalR/common/Http.Connections/test/HttpConnectionDispatcherTests.cs
+++ b/src/SignalR/common/Http.Connections/test/HttpConnectionDispatcherTests.cs
@@ -23,6 +23,7 @@ using Microsoft.AspNetCore.Http.Endpoints;
 using Microsoft.AspNetCore.Http.Features;
 using Microsoft.AspNetCore.Http.Internal;
 using Microsoft.AspNetCore.SignalR.Tests;
+using Microsoft.AspNetCore.Testing.xunit;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Testing;
@@ -1067,6 +1068,7 @@ namespace Microsoft.AspNetCore.Http.Connections.Tests
         }
 
         [Fact]
+        [Flaky("https://github.com/aspnet/AspNetCore-Internal/issues/2040", "All")]
         public async Task MultipleRequestsToActiveConnectionId409ForLongPolling()
         {
             using (StartVerifiableLog())