diff --git a/src/mono/wasm/Wasm.Build.Tests/TestAppScenarios/SignalRClientTests.cs b/src/mono/wasm/Wasm.Build.Tests/TestAppScenarios/SignalRClientTests.cs
index b1e46d5110067..10ba63099d6be 100644
--- a/src/mono/wasm/Wasm.Build.Tests/TestAppScenarios/SignalRClientTests.cs
+++ b/src/mono/wasm/Wasm.Build.Tests/TestAppScenarios/SignalRClientTests.cs
@@ -24,6 +24,7 @@ public SignalRClientTests(ITestOutputHelper output, SharedBuildPerTestClassFixtu
     }
 
     [ConditionalTheory(typeof(BuildTestBase), nameof(IsWorkloadWithMultiThreadingForDefaultFramework))]
+    [ActiveIssue("https://github.com/dotnet/runtime/issues/99268", TestPlatforms.Windows)]
     [InlineData("Debug", "LongPolling")]
     [InlineData("Release", "LongPolling")]
     [InlineData("Debug", "WebSockets")]