Enable BeginAcceptV4BoundToAnyV4_Success with better timeout handling (…

…#56406)

src/libraries/System.Net.Sockets/tests/FunctionalTests/DualModeSocketTest.cs

@@ -782,7 +782,6 @@ public void BeginAcceptV4BoundToSpecificV4_Success()
         }
 
         [Fact]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/45810", TestRuntimes.Mono)]
         public void BeginAcceptV4BoundToAnyV4_Success()
         {
             DualModeConnect_BeginAccept_Helper(IPAddress.Any, IPAddress.Loopback);
@@ -844,6 +843,13 @@ private void DualModeConnect_BeginAccept_Helper(IPAddress listenOn, IPAddress co
                 serverSocket.Listen(1);
                 IAsyncResult async = serverSocket.BeginAccept(null, null);
                 SocketClient client = new SocketClient(_log, serverSocket, connectTo, port);
+
+                Assert.True(
+                    client.WaitHandle.WaitOne(TestSettings.PassingTestTimeout),
+                    "Timed out while waiting for connection");
+                Assert.True(
+                    async.AsyncWaitHandle.WaitOne(TestSettings.PassingTestTimeout),
+                    "Timed out while waiting to accept the client");
 
                 // Due to the nondeterministic nature of calling dispose on a Socket that is doing
                 // an EndAccept operation, we expect two types of exceptions to happen.
@@ -866,10 +872,6 @@ private void DualModeConnect_BeginAccept_Helper(IPAddress listenOn, IPAddress co
                 catch (ObjectDisposedException) { }
                 catch (SocketException) { }
 
-                Assert.True(
-                    client.WaitHandle.WaitOne(TestSettings.PassingTestTimeout),
-                    "Timed out while waiting for connection");
-
                 if (client.Error != SocketError.Success)
                 {
                     throw new SocketException((int)client.Error);