diff --git a/src/Servers/IIS/IIS/test/Common.FunctionalTests/AppOfflineTests.cs b/src/Servers/IIS/IIS/test/Common.FunctionalTests/AppOfflineTests.cs
index 7d8d661ef0..0da32bfd26 100644
--- a/src/Servers/IIS/IIS/test/Common.FunctionalTests/AppOfflineTests.cs
+++ b/src/Servers/IIS/IIS/test/Common.FunctionalTests/AppOfflineTests.cs
@@ -98,7 +98,7 @@ namespace Microsoft.AspNetCore.Server.IIS.FunctionalTests
             await deploymentResult.AssertRecycledAsync(() => AssertAppOffline(deploymentResult));
         }
 
-        [ConditionalFact]
+        [ConditionalFact(Skip = "https://github.com/aspnet/AspNetCore/issues/6555")]
         [RequiresIIS(IISCapability.ShutdownToken)]
         public async Task AppOfflineDroppedWhileSiteStarting_SiteShutsDown_InProcess()
         {
diff --git a/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs b/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
index 76c5482fba..c76ea789fb 100644
--- a/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
+++ b/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
@@ -142,7 +142,7 @@ namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
             }
         }
 
-        [ConditionalFact]
+        [ConditionalFact(Skip = "https://github.com/aspnet/AspNetCore/issues/6615")]
         [RequiresIIS(IISCapability.PoolEnvironmentVariables)]
         public async Task DoesNotStartIfDisabled()
         {
diff --git a/src/Servers/IIS/IIS/test/IIS.Tests/ClientDisconnectTests.cs b/src/Servers/IIS/IIS/test/IIS.Tests/ClientDisconnectTests.cs
index dbe562aa7c..5f0ccd97d7 100644
--- a/src/Servers/IIS/IIS/test/IIS.Tests/ClientDisconnectTests.cs
+++ b/src/Servers/IIS/IIS/test/IIS.Tests/ClientDisconnectTests.cs
@@ -171,7 +171,7 @@ namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
             }
         }
 
-        [ConditionalFact]
+        [ConditionalFact(Skip = "https://github.com/aspnet/AspNetCore/issues/6595")]
         public async Task ReaderThrowsCancelledException()
         {
             var requestStartedCompletionSource = CreateTaskCompletionSource();
diff --git a/src/Servers/IIS/IIS/test/IISExpress.FunctionalTests/InProcess/ShutdownTests.cs b/src/Servers/IIS/IIS/test/IISExpress.FunctionalTests/InProcess/ShutdownTests.cs
index caaf728c64..b598f8abe7 100644
--- a/src/Servers/IIS/IIS/test/IISExpress.FunctionalTests/InProcess/ShutdownTests.cs
+++ b/src/Servers/IIS/IIS/test/IISExpress.FunctionalTests/InProcess/ShutdownTests.cs
@@ -41,7 +41,7 @@ namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
         }
 
 
-        [ConditionalFact]
+        [ConditionalFact(Skip = "https://github.com/aspnet/AspNetCore/issues/6605")]
         public async Task ServerShutsDownWhenMainExitsStress()
         {
             var parameters = _fixture.GetBaseDeploymentParameters(publish: true);