diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorRediscoverySignalTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorRediscoverySignalTests.cs
index 00292ba5..88dc0024 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorRediscoverySignalTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.Runtime.Tests/Drivers/DriverInstanceActorRediscoverySignalTests.cs
@@ -95,19 +95,20 @@ public sealed class DriverInstanceActorRediscoverySignalTests : RuntimeActorTest
         var publisher = new RecordingHealthPublisher();
         var parent = CreateTestProbe();
         parent.IgnoreMessages(_ => true);
-        var actor = parent.ChildActorOf(DriverInstanceActor.Props(driver, healthPublisher: publisher));
+        var actor = parent.ChildActorOf(DriverInstanceActor.Props(driver, healthPublisher: publisher,
+            healthPollInterval: TimeSpan.FromMilliseconds(200)));
 
         actor.Tell(new DriverInstanceActor.InitializeRequested("{}"));
         AwaitAssert(() => publisher.Published.Count.ShouldBeGreaterThan(0), TimeSpan.FromSeconds(3));
         driver.RaiseRediscovery("agent-instance-changed");
         AwaitAssert(
-            () => publisher.Published.Any(p => p.RediscoveryNeededUtc is not null),
+            () => publisher.Published.Any(p => p.RediscoveryNeededUtc is not null).ShouldBeTrue(),
             TimeSpan.FromSeconds(3));
 
         // Force a further publish by changing something else about the driver's health.
         driver.SetLastError("transient read failure");
         AwaitAssert(
-            () => publisher.Published.Any(p => p.LastError == "transient read failure"),
+            () => publisher.Published.Any(p => p.LastError == "transient read failure").ShouldBeTrue(),
             TimeSpan.FromSeconds(3));
 
         var latest = publisher.Published[^1];