diff --git a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/AssemblyInfo.cs b/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/AssemblyInfo.cs
deleted file mode 100644
index 54c8a4d926e5c3..00000000000000
--- a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/AssemblyInfo.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-
-using Xunit;
-
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
diff --git a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/System.Net.Http.WinHttpHandler.Functional.Tests.csproj b/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/System.Net.Http.WinHttpHandler.Functional.Tests.csproj
index 8ee59f267d328a..d9605be0059c45 100644
--- a/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/System.Net.Http.WinHttpHandler.Functional.Tests.csproj
+++ b/src/libraries/System.Net.Http.WinHttpHandler/tests/FunctionalTests/System.Net.Http.WinHttpHandler.Functional.Tests.csproj
@@ -10,7 +10,6 @@
              Link="Common\System\Net\Configuration.cs" />
     <Compile Include="$(CommonTestPath)System\Net\Configuration.Http.cs"
              Link="Common\System\Net\Configuration.Http.cs" />
-    <Compile Include="AssemblyInfo.cs" />
     <Compile Include="BaseCertificateTest.cs" />
     <Compile Include="ServerCertificateTest.cs" />
     <Compile Include="WinHttpHandlerTest.cs" />
diff --git a/src/libraries/System.Net.Mail/tests/Functional/AssemblyInfo.cs b/src/libraries/System.Net.Mail/tests/Functional/AssemblyInfo.cs
deleted file mode 100644
index 54c8a4d926e5c3..00000000000000
--- a/src/libraries/System.Net.Mail/tests/Functional/AssemblyInfo.cs
+++ /dev/null
@@ -1,6 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-
-using Xunit;
-
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
diff --git a/src/libraries/System.Net.Mail/tests/Functional/System.Net.Mail.Functional.Tests.csproj b/src/libraries/System.Net.Mail/tests/Functional/System.Net.Mail.Functional.Tests.csproj
index d7014a3e0a65b5..2f4f8566c8d380 100644
--- a/src/libraries/System.Net.Mail/tests/Functional/System.Net.Mail.Functional.Tests.csproj
+++ b/src/libraries/System.Net.Mail/tests/Functional/System.Net.Mail.Functional.Tests.csproj
@@ -8,7 +8,6 @@
   <ItemGroup>
     <Compile Include="AlternateViewCollectionTest.cs" />
     <Compile Include="AlternateViewTest.cs" />
-    <Compile Include="AssemblyInfo.cs" />
     <Compile Include="AttachmentCollectionTest.cs" />
     <Compile Include="AttachmentTest.cs" />
     <Compile Include="ContentDispositionTest.cs" />
diff --git a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/IPGlobalPropertiesTest.cs b/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/IPGlobalPropertiesTest.cs
index b1be503ee4cabf..87775923829108 100644
--- a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/IPGlobalPropertiesTest.cs
+++ b/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/IPGlobalPropertiesTest.cs
@@ -160,7 +160,6 @@ public void IPGlobalProperties_UdpListeners_Succeed(IPAddress address)
         }
 
         [Theory]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [PlatformSpecific(~(TestPlatforms.iOS | TestPlatforms.tvOS | TestPlatforms.Android))]
         [MemberData(nameof(Loopbacks))]
         public async Task IPGlobalProperties_TcpActiveConnections_Succeed(IPAddress address)
diff --git a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/NetworkInterfaceBasicTest.cs b/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/NetworkInterfaceBasicTest.cs
index 4b4a4ad44d9b23..14b5d9ffaf1d1f 100644
--- a/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/NetworkInterfaceBasicTest.cs
+++ b/src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/NetworkInterfaceBasicTest.cs
@@ -274,7 +274,6 @@ public void BasicTest_GetIsNetworkAvailable_Success()
         }
 
         [ConditionalTheory]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD, "Expected behavior is different on OSX or FreeBSD")]
         [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
         [InlineData(false)]
diff --git a/src/libraries/System.Net.Requests/tests/AssemblyInfo.cs b/src/libraries/System.Net.Requests/tests/AssemblyInfo.cs
index eb0dcc687b65ba..ef5fa4660024d7 100644
--- a/src/libraries/System.Net.Requests/tests/AssemblyInfo.cs
+++ b/src/libraries/System.Net.Requests/tests/AssemblyInfo.cs
@@ -4,5 +4,4 @@
 using System;
 using Xunit;
 
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
 [assembly: SkipOnPlatform(TestPlatforms.Browser, "System.Net.Requests is not supported on Browser.")]
diff --git a/src/libraries/System.Net.Security/tests/FunctionalTests/AssemblyInfo.cs b/src/libraries/System.Net.Security/tests/FunctionalTests/AssemblyInfo.cs
index 9adf9f8c835361..b80edd16806be5 100644
--- a/src/libraries/System.Net.Security/tests/FunctionalTests/AssemblyInfo.cs
+++ b/src/libraries/System.Net.Security/tests/FunctionalTests/AssemblyInfo.cs
@@ -4,5 +4,4 @@
 using System;
 using Xunit;
 
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
 [assembly: SkipOnPlatform(TestPlatforms.Browser, "System.Net.Security is not supported on Browser")]
diff --git a/src/libraries/System.Net.Sockets/tests/FunctionalTests/AssemblyInfo.cs b/src/libraries/System.Net.Sockets/tests/FunctionalTests/AssemblyInfo.cs
index 96ed05fbfb7aa4..09a34bb9c412c3 100644
--- a/src/libraries/System.Net.Sockets/tests/FunctionalTests/AssemblyInfo.cs
+++ b/src/libraries/System.Net.Sockets/tests/FunctionalTests/AssemblyInfo.cs
@@ -4,5 +4,4 @@
 using Xunit;
 
 [assembly: SkipOnCoreClr("System.Net.Tests are flaky and/or long running: https://github.com/dotnet/runtime/issues/131", ~RuntimeConfiguration.Release)]
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
 [assembly: SkipOnPlatform(TestPlatforms.Browser, "System.Net.Sockets is not supported on Browser")]
diff --git a/src/libraries/System.Net.WebClient/tests/AssemblyInfo.cs b/src/libraries/System.Net.WebClient/tests/AssemblyInfo.cs
index d7fe854700dc17..3b64820724cc76 100644
--- a/src/libraries/System.Net.WebClient/tests/AssemblyInfo.cs
+++ b/src/libraries/System.Net.WebClient/tests/AssemblyInfo.cs
@@ -3,5 +3,4 @@
 
 using Xunit;
 
-[assembly: ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
 [assembly: SkipOnPlatform(TestPlatforms.Browser, "System.Net.WebClient is not recommended for new development and not supported on Browser")] 
diff --git a/src/libraries/System.Net.WebSockets.Client/tests/ClientWebSocketOptionsTests.cs b/src/libraries/System.Net.WebSockets.Client/tests/ClientWebSocketOptionsTests.cs
index 665d8208b41421..257436bbb77fae 100644
--- a/src/libraries/System.Net.WebSockets.Client/tests/ClientWebSocketOptionsTests.cs
+++ b/src/libraries/System.Net.WebSockets.Client/tests/ClientWebSocketOptionsTests.cs
@@ -236,7 +236,6 @@ await LoopbackServer.CreateClientAndServerAsync(async uri =>
         }
 
         [ConditionalTheory(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [InlineData("ws")]
         [InlineData("wss")]
         [SkipOnPlatform(TestPlatforms.Browser, "Credentials not supported on browser")]
diff --git a/src/libraries/System.Net.WebSockets.Client/tests/CloseTest.cs b/src/libraries/System.Net.WebSockets.Client/tests/CloseTest.cs
index 9034b38bd43f46..65e06accf4d709 100644
--- a/src/libraries/System.Net.WebSockets.Client/tests/CloseTest.cs
+++ b/src/libraries/System.Net.WebSockets.Client/tests/CloseTest.cs
@@ -390,7 +390,6 @@ public async Task CloseAsync_DuringConcurrentReceiveAsync_ExpectedStates(Uri ser
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/54153", TestPlatforms.Browser)]
         public async Task CloseAsync_CancelableEvenWhenPendingReceive_Throws()
         {
diff --git a/src/libraries/System.Net.WebSockets.Client/tests/ConnectTest.cs b/src/libraries/System.Net.WebSockets.Client/tests/ConnectTest.cs
index 3fd63fbbb7c61a..3b167b39bf8487 100644
--- a/src/libraries/System.Net.WebSockets.Client/tests/ConnectTest.cs
+++ b/src/libraries/System.Net.WebSockets.Client/tests/ConnectTest.cs
@@ -173,7 +173,6 @@ public async Task ConnectAsync_AddCustomHeaders_Success(Uri server)
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.Browser, "SetRequestHeader not supported on browser")]
         public async Task ConnectAsync_AddHostHeader_Success()
         {
@@ -294,7 +293,6 @@ public async Task ConnectAsync_PassMultipleSubProtocols_ServerRequires_Connectio
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.Browser, "SetRequestHeader not supported on Browser")]
         public async Task ConnectAsync_NonStandardRequestHeaders_HeadersAddedWithoutValidation()
         {
@@ -365,7 +363,6 @@ public async Task ConnectAsync_CancellationRequestedInflightConnect_ThrowsOperat
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         public async Task ConnectAsync_CancellationRequestedAfterConnect_ThrowsOperationCanceledException()
         {
             var releaseServer = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
@@ -400,7 +397,6 @@ await server.AcceptConnectionAsync(async connection =>
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.Browser, "CollectHttpResponseDetails not supported on Browser")]
         public async Task ConnectAsync_HttpResponseDetailsCollectedOnFailure()
         {
@@ -420,7 +416,6 @@ await LoopbackServer.CreateClientAndServerAsync(async uri =>
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.Browser, "CollectHttpResponseDetails not supported on Browser")]
         public async Task ConnectAsync_HttpResponseDetailsCollectedOnFailure_CustomHeader()
         {
@@ -443,7 +438,6 @@ await LoopbackServer.CreateClientAndServerAsync(async uri =>
         }
 
         [ConditionalFact(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.Browser, "CollectHttpResponseDetails not supported on Browser")]
         public async Task ConnectAsync_HttpResponseDetailsCollectedOnSuccess_Extensions()
         {
diff --git a/src/libraries/System.Net.WebSockets.Client/tests/DeflateTests.cs b/src/libraries/System.Net.WebSockets.Client/tests/DeflateTests.cs
index 9836f31df16cb7..92f287fe4506ff 100644
--- a/src/libraries/System.Net.WebSockets.Client/tests/DeflateTests.cs
+++ b/src/libraries/System.Net.WebSockets.Client/tests/DeflateTests.cs
@@ -36,7 +36,6 @@ public DeflateTests(ITestOutputHelper output) : base(output)
         }
 
         [ConditionalTheory(nameof(WebSocketsSupported))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [InlineData(15, true, 15, true, "permessage-deflate; client_max_window_bits")]
         [InlineData(14, true, 15, true, "permessage-deflate; client_max_window_bits=14")]
         [InlineData(15, true, 14, true, "permessage-deflate; client_max_window_bits; server_max_window_bits=14")]
diff --git a/src/libraries/System.Net.WebSockets/tests/WebSocketCreateTest.cs b/src/libraries/System.Net.WebSockets/tests/WebSocketCreateTest.cs
index ac0035eb415911..f8323a20332027 100644
--- a/src/libraries/System.Net.WebSockets/tests/WebSocketCreateTest.cs
+++ b/src/libraries/System.Net.WebSockets/tests/WebSocketCreateTest.cs
@@ -41,7 +41,6 @@ public void CreateFromStream_ValidBufferSizes_CreatesWebSocket()
         [Theory]
         [MemberData(nameof(EchoServers))]
         [SkipOnPlatform(TestPlatforms.Browser, "System.Net.Sockets is not supported on this platform.")]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         public async Task WebSocketProtocol_CreateFromConnectedStream_CanSendReceiveData(Uri echoUri)
         {
             if (PlatformDetection.IsWindows7)
@@ -104,7 +103,6 @@ public async Task ReceiveAsync_UTF8SplitAcrossMultipleBuffers_ValidDataReceived(
 
         [Theory]
         [SkipOnPlatform(TestPlatforms.Browser, "System.Net.Sockets is not supported on this platform.")]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [InlineData(0b_1000_0001, 0b_0_000_0001, false)] // fin + text, no mask + length == 1
         [InlineData(0b_1100_0001, 0b_0_000_0001, true)] // fin + rsv1 + text, no mask + length == 1
         [InlineData(0b_1010_0001, 0b_0_000_0001, true)] // fin + rsv2 + text, no mask + length == 1
@@ -182,7 +180,6 @@ public async Task ReceiveAsync_InvalidPayloadLength_AbortsAndThrowsException(byt
 
         [Fact]
         [SkipOnPlatform(TestPlatforms.Browser, "System.Net.Sockets is not supported on this platform.")]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         public async Task ReceiveAsync_ServerSplitHeader_ValidDataReceived()
         {
             using (Socket listener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
@@ -237,7 +234,6 @@ public async Task ReceiveAsync_ServerSplitHeader_ValidDataReceived()
         [Theory]
         [MemberData(nameof(EchoServersAndBoolean))]
         [SkipOnPlatform(TestPlatforms.Browser, "System.Net.Sockets is not supported on this platform.")]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         public async Task WebSocketProtocol_CreateFromConnectedStream_CloseAsyncClosesStream(Uri echoUri, bool explicitCloseAsync)
         {
             if (PlatformDetection.IsWindows7)