diff --git a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
index 0af053ad2d..9144f10f41 100644
--- a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
@@ -46,7 +46,7 @@ class ReplicatedCacheSpec extends MultiNodeSpec(ReplicatedCacheSpec) with STMult
   }
 
   "Demo of a replicated cache" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
index afca412c71..2f3d0b78a0 100644
--- a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
@@ -46,7 +46,7 @@ class ReplicatedMetricsSpec extends MultiNodeSpec(ReplicatedMetricsSpec) with ST
   }
 
   "Demo of a replicated metrics" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
index 956eb92744..9efcf2f63a 100644
--- a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
+++ b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
@@ -55,7 +55,7 @@ class ServiceRegistrySpec extends MultiNodeSpec(ServiceRegistrySpec) with STMult
   }
 
   "Demo of a replicated service registry" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
index f796c516e7..432dbc95da 100644
--- a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
@@ -46,7 +46,7 @@ class ShoppingCartSpec extends MultiNodeSpec(ShoppingCartSpec) with STMultiNodeS
   }
 
   "Demo of a replicated shopping cart" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
index 9b8b9501fc..37c62cfe7a 100644
--- a/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-java/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
@@ -46,7 +46,7 @@ class VotingServiceSpec extends MultiNodeSpec(VotingServiceSpec) with STMultiNod
 
   "Demo of a replicated voting" must {
 
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
index 5be8ab0c00..33551afd2a 100644
--- a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedCacheSpec.scala
@@ -45,7 +45,7 @@ class ReplicatedCacheSpec extends MultiNodeSpec(ReplicatedCacheSpec) with STMult
   }
 
   "Demo of a replicated cache" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
index 8def9c620c..dea81b1884 100644
--- a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ReplicatedMetricsSpec.scala
@@ -45,7 +45,7 @@ class ReplicatedMetricsSpec extends MultiNodeSpec(ReplicatedMetricsSpec) with ST
   }
 
   "Demo of a replicated metrics" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
index 5cdddfa689..5be54aa3ad 100644
--- a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
+++ b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ServiceRegistrySpec.scala
@@ -54,7 +54,7 @@ class ServiceRegistrySpec extends MultiNodeSpec(ServiceRegistrySpec) with STMult
   }
 
   "Demo of a replicated service registry" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
index 38219ecacd..600cfc1ffd 100644
--- a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/ShoppingCartSpec.scala
@@ -45,7 +45,7 @@ class ShoppingCartSpec extends MultiNodeSpec(ShoppingCartSpec) with STMultiNodeS
   }
 
   "Demo of a replicated shopping cart" must {
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)
diff --git a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
index 52ed731a4e..339982e460 100644
--- a/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
+++ b/akka-samples/akka-sample-distributed-data-scala/src/multi-jvm/scala/sample/distributeddata/VotingServiceSpec.scala
@@ -45,7 +45,7 @@ class VotingServiceSpec extends MultiNodeSpec(VotingServiceSpec) with STMultiNod
 
   "Demo of a replicated voting" must {
 
-    "join cluster" in within(10.seconds) {
+    "join cluster" in within(20.seconds) {
       join(node1, node1)
       join(node2, node1)
       join(node3, node1)