diff --git a/modules/transport-netty4/src/internalClusterTest/java/org/elasticsearch/http/netty4/Netty4ChunkedContinuationsIT.java b/modules/transport-netty4/src/internalClusterTest/java/org/elasticsearch/http/netty4/Netty4ChunkedContinuationsIT.java
index 5ad1152d65e85..21437c06c803d 100644
--- a/modules/transport-netty4/src/internalClusterTest/java/org/elasticsearch/http/netty4/Netty4ChunkedContinuationsIT.java
+++ b/modules/transport-netty4/src/internalClusterTest/java/org/elasticsearch/http/netty4/Netty4ChunkedContinuationsIT.java
@@ -72,8 +72,10 @@
 import org.elasticsearch.tasks.Task;
 import org.elasticsearch.tasks.TaskCancelledException;
 import org.elasticsearch.test.MockLog;
+import org.elasticsearch.test.ReachabilityChecker;
 import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.threadpool.ThreadPool;
+import org.elasticsearch.transport.LeakTracker;
 import org.elasticsearch.transport.TransportService;
 import org.elasticsearch.transport.netty4.Netty4Utils;
 import org.elasticsearch.xcontent.ToXContentObject;
@@ -315,14 +317,20 @@ public void onFailure(Exception exception) {
 
     private static Releasable withResourceTracker() {
         assertNull(refs);
+        final ReachabilityChecker reachabilityChecker = new ReachabilityChecker();
         final var latch = new CountDownLatch(1);
-        refs = AbstractRefCounted.of(latch::countDown);
+        refs = LeakTracker.wrap(reachabilityChecker.register(AbstractRefCounted.of(latch::countDown)));
         return () -> {
             refs.decRef();
+            boolean success = false;
             try {
                 safeAwait(latch);
+                success = true;
             } finally {
                 refs = null;
+                if (success == false) {
+                    reachabilityChecker.ensureUnreachable();
+                }
             }
         };
     }
diff --git a/muted-tests.yml b/muted-tests.yml
index dc59d49a66c91..0733b1fb9c89f 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -78,9 +78,6 @@ tests:
 - class: org.elasticsearch.xpack.transform.transforms.TransformIndexerTests
   method: testMaxPageSearchSizeIsResetToConfiguredValue
   issue: https://github.com/elastic/elasticsearch/issues/109844
-- class: "org.elasticsearch.http.netty4.Netty4ChunkedContinuationsIT"
-  issue: "https://github.com/elastic/elasticsearch/issues/109866"
-  method: "testClientCancellation"
 - class: "org.elasticsearch.test.jvm_crash.JvmCrashIT"
   issue: "https://github.com/elastic/elasticsearch/issues/110052"
   method: "testJvmCrash"