diff --git a/node/src/integration-test/kotlin/net/corda/node/services/AttachmentLoadingTests.kt b/node/src/integration-test/kotlin/net/corda/node/services/AttachmentLoadingTests.kt
index 7fdc7a6d06..3da63fedde 100644
--- a/node/src/integration-test/kotlin/net/corda/node/services/AttachmentLoadingTests.kt
+++ b/node/src/integration-test/kotlin/net/corda/node/services/AttachmentLoadingTests.kt
@@ -28,6 +28,7 @@ import net.corda.testing.internal.withoutTestSerialization
 import net.corda.testing.services.MockAttachmentStorage
 import net.corda.testing.internal.rigorousMock
 import org.junit.Assert.assertEquals
+import org.junit.Ignore
 import org.junit.Rule
 import org.junit.Test
 import java.net.URLClassLoader
@@ -99,6 +100,7 @@ class AttachmentLoadingTests {
         assertEquals(expected, actual)
     }
 
+    @Ignore("Test has undeterministic capacity to hang, ignore till fixed")
     @Test
     fun `test that attachments retrieved over the network are not used for code`() = withoutTestSerialization {
         driver {
@@ -111,6 +113,7 @@ class AttachmentLoadingTests {
         Unit
     }
 
+    @Ignore("Test has undeterministic capacity to hang, ignore till fixed")
     @Test
     fun `tests that if the attachment is loaded on both sides already that a flow can run`() = withoutTestSerialization {
         driver {
diff --git a/node/src/integration-test/kotlin/net/corda/node/services/DistributedServiceTests.kt b/node/src/integration-test/kotlin/net/corda/node/services/DistributedServiceTests.kt
index 32a09d06a9..92723d52d8 100644
--- a/node/src/integration-test/kotlin/net/corda/node/services/DistributedServiceTests.kt
+++ b/node/src/integration-test/kotlin/net/corda/node/services/DistributedServiceTests.kt
@@ -20,6 +20,7 @@ import net.corda.testing.driver.driver
 import net.corda.testing.node.ClusterSpec
 import net.corda.testing.node.NotarySpec
 import org.assertj.core.api.Assertions.assertThat
+import org.junit.Ignore
 import org.junit.Test
 import rx.Observable
 import java.util.*
@@ -73,6 +74,7 @@ class DistributedServiceTests {
 
     // TODO Use a dummy distributed service rather than a Raft Notary Service as this test is only about Artemis' ability
     // to handle distributed services
+    @Ignore("Test has undeterministic capacity to hang, ignore till fixed")
     @Test
     fun `requests are distributed evenly amongst the nodes`() = setup {
         // Issue 100 pounds, then pay ourselves 50x2 pounds
@@ -101,6 +103,7 @@ class DistributedServiceTests {
     }
 
     // TODO This should be in RaftNotaryServiceTests
+    @Ignore("Test has undeterministic capacity to hang, ignore till fixed")
     @Test
     fun `cluster survives if a notary is killed`() = setup {
         // Issue 100 pounds, then pay ourselves 10x5 pounds