diff --git a/src/core/Akka.Remote.Tests/BugFixes/BugFix4384Spec.cs b/src/core/Akka.Remote.Tests/BugFixes/BugFix4384Spec.cs
index 092dc05420e..b77f6e8f7be 100644
--- a/src/core/Akka.Remote.Tests/BugFixes/BugFix4384Spec.cs
+++ b/src/core/Akka.Remote.Tests/BugFixes/BugFix4384Spec.cs
@@ -17,7 +17,7 @@
 using Xunit;
 using Xunit.Abstractions;
 
-namespace Akka.Tests.Actor
+namespace Akka.Remote.Tests.BugFixes
 {
     public class BugFix4384Spec : TestKit.Xunit2.TestKit
     {
@@ -47,6 +47,14 @@ public BugFix4384Spec(ITestOutputHelper outputHelper) : base(nameof(BugFix4384Sp
             InitializeLogger(Sys2);
         }
 
+        protected override async Task AfterAllAsync()
+        {
+            await Task.WhenAll(
+                base.AfterAllAsync(),
+                ShutdownAsync(Sys1),
+                ShutdownAsync(Sys2));
+        }
+
         [Fact]
         public async Task Ask_from_local_actor_without_remote_association_should_work()
         {
@@ -84,24 +92,27 @@ public async Task ConsistentHashingPoolRoutersShouldWorkAsExpectedWithHashMappin
             var secondActor = Sys1.ActorOf(act => act.ReceiveAny((o, ctx) => ctx.Sender.Tell(o)), "foo");
 
             Sys2.ActorSelection(new RootActorPath(Sys1Address) / "user" / secondActor.Path.Name).Tell("foo", sys2Probe);
-            sys2Probe.ExpectMsg("foo");
+            await sys2Probe.ExpectMsgAsync("foo");
 
             // have ActorSystem2 message it via tell
             var sel = Sys2.ActorSelection(new RootActorPath(Sys1Address) / "user" / "router1");
             sel.Tell(new HashableString("foo"));
-            ExpectMsg<HashableString>(str => str.Str.Equals("foo"));
+            await ExpectMsgAsync<HashableString>(str => str.Str.Equals("foo"));
 
-            // have ActorSystem2 message it via Ask
-            sel.Ask(new Identify("bar2"), TimeSpan.FromSeconds(3)).PipeTo(sys2Probe);
-            var remoteRouter = sys2Probe.ExpectMsg<ActorIdentity>(x => x.MessageId.Equals("bar2"), TimeSpan.FromSeconds(5)).Subject;
+            // have ActorSystem2 message it via Ask. Task is intentionally not awaited.
+            var task = sel.Ask(new Identify("bar2"), TimeSpan.FromSeconds(3)).PipeTo(sys2Probe);
+            var remoteRouter = (await sys2Probe.ExpectMsgAsync<ActorIdentity>(x => x.MessageId.Equals("bar2"), TimeSpan.FromSeconds(5))).Subject;
 
             var s2Actor = Sys2.ActorOf(act =>
             {
                 act.ReceiveAny((o, ctx) =>
-                    sel.Ask<ActorIdentity>(new Identify(o), TimeSpan.FromSeconds(3)).PipeTo(sys2Probe));
+                {
+                    // Task is intentionally not awaited.
+                    var task = sel.Ask<ActorIdentity>(new Identify(o), TimeSpan.FromSeconds(3)).PipeTo(sys2Probe);
+                });
             });
             s2Actor.Tell("hit");
-            sys2Probe.ExpectMsg<ActorIdentity>(x => x.MessageId.Equals("hit"), TimeSpan.FromSeconds(5));
+            await sys2Probe.ExpectMsgAsync<ActorIdentity>(x => x.MessageId.Equals("hit"), TimeSpan.FromSeconds(5));
         }
 
         class ReporterActor : ReceiveActor