diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index ffa66ee7217..6ddb9d3b299 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -16,7 +16,7 @@ on:
       testSessionTimeoutMs:
         required: false
         type: string
-        default: "600000"
+        default: "900000"
       testHangTimeout:
         required: false
         type: string
diff --git a/tests/Aspire.Dashboard.Tests/Integration/Playwright/AppBarTests.cs b/tests/Aspire.Dashboard.Tests/Integration/Playwright/AppBarTests.cs
index 9b6c8dcb6bf..aa5a20b9532 100644
--- a/tests/Aspire.Dashboard.Tests/Integration/Playwright/AppBarTests.cs
+++ b/tests/Aspire.Dashboard.Tests/Integration/Playwright/AppBarTests.cs
@@ -65,7 +65,6 @@ await AsyncTestHelpers.AssertIsTrueRetryAsync(
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7943")]
     public async Task AppBar_Change_Theme_ReloadPage()
     {
         // Arrange
diff --git a/tests/Aspire.Hosting.Testing.Tests/TestingBuilderTests.cs b/tests/Aspire.Hosting.Testing.Tests/TestingBuilderTests.cs
index a15231fb50e..54f8f357f75 100644
--- a/tests/Aspire.Hosting.Testing.Tests/TestingBuilderTests.cs
+++ b/tests/Aspire.Hosting.Testing.Tests/TestingBuilderTests.cs
@@ -210,7 +210,6 @@ public async Task GetHttpClientBeforeStart(bool genericEntryPoint)
     [InlineData(false, true)]
     [InlineData(true, false)]
     [InlineData(true, true)]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7930")]
     public async Task ArgsPropagateToAppHostConfiguration(bool genericEntryPoint, bool directArgs)
     {
         string[] args = directArgs ? ["APP_HOST_ARG=42"] : [];
diff --git a/tests/Aspire.Hosting.Tests/DistributedApplicationTests.cs b/tests/Aspire.Hosting.Tests/DistributedApplicationTests.cs
index fe627c6a35a..fe92fdc926a 100644
--- a/tests/Aspire.Hosting.Tests/DistributedApplicationTests.cs
+++ b/tests/Aspire.Hosting.Tests/DistributedApplicationTests.cs
@@ -311,7 +311,6 @@ public void TryAddWillNotAddTheSameLifecycleHook()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task AllocatedPortsAssignedAfterHookRuns()
     {
         using var testProgram = CreateTestProgram("ports-assigned-after-hook-runs");
@@ -344,7 +343,6 @@ public Task AfterEndpointsAllocatedAsync(DistributedApplicationModel appModel, C
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task TestServicesWithMultipleReplicas()
     {
         var replicaCount = 3;
@@ -401,7 +399,6 @@ public async Task TestServicesWithMultipleReplicas()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyContainerArgs()
     {
         using var testProgram = CreateTestProgram("verify-container-args");
@@ -486,7 +483,6 @@ public async Task VerifyContainerCreateFile()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyContainerStopStartWorks()
     {
         using var testProgram = CreateTestProgram("container-start-stop", randomizePorts: false);
@@ -574,7 +570,6 @@ public async Task VerifyExecutableStopStartWorks()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task SpecifyingEnvPortInEndpointFlowsToEnv()
     {
         const string testName = "ports-flow-to-env";
@@ -631,7 +626,6 @@ public async Task SpecifyingEnvPortInEndpointFlowsToEnv()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task StartAsync_DashboardAuthConfig_PassedToDashboardProcess()
     {
         const string testName = "dashboard-auth-config";
@@ -709,7 +703,6 @@ public async Task StartAsync_UnsecuredAllowAnonymous_PassedToDashboardProcess()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyDockerWithEntrypointWorks()
     {
         const string testName = "docker-entrypoint";
@@ -738,7 +731,6 @@ public async Task VerifyDockerWithEntrypointWorks()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyDockerWithBindMountWorksWithAbsolutePaths()
     {
         const string testName = "docker-bindmount-absolute";
@@ -769,7 +761,6 @@ public async Task VerifyDockerWithBindMountWorksWithAbsolutePaths()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyDockerWithBindMountWorksWithRelativePaths()
     {
         const string testName = "docker-bindmount-relative";
@@ -800,7 +791,6 @@ public async Task VerifyDockerWithBindMountWorksWithRelativePaths()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task VerifyDockerWithVolumeWorksWithName()
     {
         const string testName = "docker-volume";
@@ -830,7 +820,6 @@ public async Task VerifyDockerWithVolumeWorksWithName()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task KubernetesHasResourceNameForContainersAndExes()
     {
         const string testName = "kube-resource-names";
@@ -888,7 +877,6 @@ public async Task KubernetesHasResourceNameForContainersAndExes()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task ReplicasAndProxylessEndpointThrows()
     {
         const string testName = "replicas-no-proxyless-endpoints";
@@ -907,7 +895,6 @@ public async Task ReplicasAndProxylessEndpointThrows()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task ProxylessEndpointWithoutPortThrows()
     {
         const string testName = "proxyess-endpoint-without-port";
@@ -927,7 +914,6 @@ public async Task ProxylessEndpointWithoutPortThrows()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task ProxylessEndpointWorks()
     {
         const string testName = "proxyless-endpoint-works";
@@ -1031,7 +1017,6 @@ public async Task ProxylessAndProxiedEndpointBothWorkOnSameResource()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task ProxylessContainerCanBeReferenced()
     {
         const string testName = "proxyless-container";
@@ -1137,7 +1122,6 @@ public async Task WithEndpointProxySupportDisablesProxies()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task ProxylessContainerWithoutPortThrows()
     {
         const string testName = "proxyless-container-without-ports";
@@ -1156,7 +1140,6 @@ public async Task ProxylessContainerWithoutPortThrows()
 
     [Fact]
     [RequiresDocker]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/4651")]
     public async Task AfterResourcesCreatedLifecycleHookWorks()
     {
         const string testName = "lifecycle-hook-after-resource-created";
diff --git a/tests/Aspire.Hosting.Tests/Health/ResourceHealthCheckServiceTests.cs b/tests/Aspire.Hosting.Tests/Health/ResourceHealthCheckServiceTests.cs
index 744cf1e0c63..5d74675f18a 100644
--- a/tests/Aspire.Hosting.Tests/Health/ResourceHealthCheckServiceTests.cs
+++ b/tests/Aspire.Hosting.Tests/Health/ResourceHealthCheckServiceTests.cs
@@ -4,7 +4,6 @@
 using System.Threading.Channels;
 using Aspire.Hosting.Health;
 using Aspire.Hosting.Utils;
-using Aspire.TestUtilities;
 using Microsoft.AspNetCore.InternalTesting;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Diagnostics.HealthChecks;
@@ -97,7 +96,6 @@ await app.ResourceNotifications.PublishUpdateAsync(resource.Resource, s => s wit
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8326")]
     public async Task ResourcesWithHealthCheck_CreationErrorIsReported()
     {
         using var builder = TestDistributedApplicationBuilder.Create(testOutputHelper);
@@ -138,7 +136,6 @@ await app.ResourceNotifications.PublishUpdateAsync(resource.Resource, s => s wit
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8103")]
     public async Task ResourcesWithHealthCheck_StopsAndRestartsMonitoringWithResource()
     {
         using var builder = TestDistributedApplicationBuilder.Create(testOutputHelper);
diff --git a/tests/Aspire.Hosting.Tests/OperationModesTests.cs b/tests/Aspire.Hosting.Tests/OperationModesTests.cs
index 36dd5c9e81e..5485846f872 100644
--- a/tests/Aspire.Hosting.Tests/OperationModesTests.cs
+++ b/tests/Aspire.Hosting.Tests/OperationModesTests.cs
@@ -14,7 +14,6 @@ namespace Aspire.Hosting.Tests;
 public class OperationModesTests(ITestOutputHelper outputHelper)
 {
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8400")]
     public async Task VerifyBackwardsCompatableRunModeInvocation()
     {
         // The purpose of this test is to verify that the apphost executable will continue
diff --git a/tests/Aspire.Hosting.Tests/SlimTestProgramTests.cs b/tests/Aspire.Hosting.Tests/SlimTestProgramTests.cs
index 98a119081ed..0f3cb1ff757 100644
--- a/tests/Aspire.Hosting.Tests/SlimTestProgramTests.cs
+++ b/tests/Aspire.Hosting.Tests/SlimTestProgramTests.cs
@@ -1,7 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-using Aspire.TestUtilities;
 using Aspire.Hosting.Testing.Tests;
 using Microsoft.AspNetCore.InternalTesting;
 using Xunit;
@@ -19,7 +18,6 @@ public SlimTestProgramTests(SlimTestProgramFixture slimTestProgramFixture)
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7923")]
     public async Task TestProjectStartsAndStopsCleanly()
     {
         var testProgram = _slimTestProgramFixture.TestProgram;
@@ -44,7 +42,6 @@ private static async Task EnsureServicesAreRunning(TestProgram testProgram, Canc
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7923")]
     public async Task TestPortOnEndpointAnnotationAndAllocatedEndpointAnnotationMatch()
     {
         var testProgram = _slimTestProgramFixture.TestProgram;
@@ -63,7 +60,6 @@ public async Task TestPortOnEndpointAnnotationAndAllocatedEndpointAnnotationMatc
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7923")]
     public async Task TestPortOnEndpointAnnotationAndAllocatedEndpointAnnotationMatchForReplicatedServices()
     {
         var testProgram = _slimTestProgramFixture.TestProgram;
diff --git a/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs b/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
index d11184aedf4..5f5afe3d20b 100644
--- a/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
+++ b/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
@@ -161,7 +161,6 @@ public async Task WithHttpCommand_ResultsInExpectedResultForStatusCode(int statu
     [InlineData("get", true)]
     [InlineData("post", false)]
     [Theory]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8514")]
     public async Task WithHttpCommand_ResultsInExpectedResultForHttpMethod(string? httpMethod, bool expectSuccess)
     {
         // Arrange
@@ -263,7 +262,6 @@ public async Task WithHttpCommand_UsesEndpointSelector()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8192")]
     public async Task WithHttpCommand_CallsPrepareRequestCallback_BeforeSendingRequest()
     {
         // Arrange
@@ -308,7 +306,6 @@ public async Task WithHttpCommand_CallsPrepareRequestCallback_BeforeSendingReque
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8200")]
     public async Task WithHttpCommand_CallsGetResponseCallback_AfterSendingRequest()
     {
         // Arrange