diff --git a/test/E2ETests/SmokeTests.cs b/test/E2ETests/SmokeTests.cs
index ef238c1145..e2848848fd 100644
--- a/test/E2ETests/SmokeTests.cs
+++ b/test/E2ETests/SmokeTests.cs
@@ -86,9 +86,9 @@ namespace E2ETests
         [InlineData(ServerType.Kestrel, RuntimeFlavor.Clr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5014/")]
         [InlineData(ServerType.Kestrel, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5015/")]
         [InlineData(ServerType.Kestrel, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Standalone, "http://localhost:5016/")]
-        //[InlineData(ServerType.IISExpress, RuntimeFlavor.Clr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5017/")] // https://github.com/aspnet/MusicStore/issues/673
-        //[InlineData(ServerType.IISExpress, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5018/")] // https://github.com/aspnet/MusicStore/issues/673
-        //[InlineData(ServerType.IISExpress, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Standalone, "http://localhost:5019/")]
+        [InlineData(ServerType.IISExpress, RuntimeFlavor.Clr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5017/")]
+        [InlineData(ServerType.IISExpress, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Portable, "http://localhost:5018/")]
+        [InlineData(ServerType.IISExpress, RuntimeFlavor.CoreClr, RuntimeArchitecture.x64, ApplicationType.Standalone, "http://localhost:5019/")]
         public async Task WindowsOS(
             ServerType serverType,
             RuntimeFlavor runtimeFlavor,