diff --git a/apis/atmos/src/main/java/org/jclouds/atmos/AtmosAsyncClient.java b/apis/atmos/src/main/java/org/jclouds/atmos/AtmosAsyncClient.java
index 06e64fc3ed..145b9f7fcf 100644
--- a/apis/atmos/src/main/java/org/jclouds/atmos/AtmosAsyncClient.java
+++ b/apis/atmos/src/main/java/org/jclouds/atmos/AtmosAsyncClient.java
@@ -58,6 +58,7 @@ import org.jclouds.rest.annotations.RequestFilters;
 import org.jclouds.rest.annotations.ResponseParser;
 import org.jclouds.rest.annotations.SkipEncoding;
 import org.jclouds.rest.functions.ReturnFalseOnNotFoundOr404;
+
 import org.jclouds.rest.functions.ReturnNullOnNotFoundOr404;
 import org.jclouds.rest.functions.ReturnVoidOnNotFoundOr404;
 
diff --git a/apis/atmos/src/main/java/org/jclouds/atmos/handlers/AtmosClientErrorRetryHandler.java b/apis/atmos/src/main/java/org/jclouds/atmos/handlers/AtmosClientErrorRetryHandler.java
index 6225524064..0eef327b1e 100644
--- a/apis/atmos/src/main/java/org/jclouds/atmos/handlers/AtmosClientErrorRetryHandler.java
+++ b/apis/atmos/src/main/java/org/jclouds/atmos/handlers/AtmosClientErrorRetryHandler.java
@@ -37,6 +37,7 @@ import com.google.inject.Inject;
 /**
  * Handles Retryable responses with error codes in the 4xx range
  * 
+ * @see Error codes section at <a href="https://www.synaptic.att.com/assets/us/en/home/Atmos_Programmers_Guide_1.3.4A.pdf" />
  * @author Adrian Cole
  */
 public class AtmosClientErrorRetryHandler implements HttpRetryHandler {
@@ -62,14 +63,14 @@ public class AtmosClientErrorRetryHandler implements HttpRetryHandler {
       if (response.getStatusCode() == 404 && command.getCurrentRequest().getMethod().equals("DELETE")) {
          command.incrementFailureCount();
          return true;
-      } else if (response.getStatusCode() == 409 || response.getStatusCode() == 400) {
+      } else if (response.getStatusCode() == 409) {
          byte[] content = HttpUtils.closeClientButKeepContentStream(response);
          // Content can be null in the case of HEAD requests
          if (content != null) {
             try {
                AtmosError error = utils.parseAtmosErrorFromContent(command, response,
                         new String(content));
-               if (error.getCode() == 1016) {
+               if (error.getCode() == 1006) {
                   return backoffHandler.shouldRetryRequest(command, response);
                }
                // don't increment count before here, since backoff handler does already
diff --git a/apis/atmos/src/main/java/org/jclouds/atmos/util/AtmosUtils.java b/apis/atmos/src/main/java/org/jclouds/atmos/util/AtmosUtils.java
index af822753cf..91efe6bf44 100644
--- a/apis/atmos/src/main/java/org/jclouds/atmos/util/AtmosUtils.java
+++ b/apis/atmos/src/main/java/org/jclouds/atmos/util/AtmosUtils.java
@@ -27,9 +27,11 @@ import javax.inject.Provider;
 import org.jclouds.atmos.AtmosClient;
 import org.jclouds.atmos.blobstore.functions.BlobToObject;
 import org.jclouds.atmos.domain.AtmosError;
+import org.jclouds.atmos.domain.AtmosObject;
 import org.jclouds.atmos.filters.SignRequest;
 import org.jclouds.atmos.options.PutOptions;
 import org.jclouds.atmos.xml.ErrorHandler;
+import org.jclouds.blobstore.KeyAlreadyExistsException;
 import org.jclouds.blobstore.domain.Blob;
 import org.jclouds.crypto.Crypto;
 import org.jclouds.http.HttpCommand;
@@ -70,8 +72,15 @@ public class AtmosUtils {
    public static String putBlob(final AtmosClient sync, Crypto crypto, BlobToObject blob2Object, String container,
             Blob blob, PutOptions options) {
       final String path = container + "/" + blob.getMetadata().getName();
-      deleteAndEnsureGone(sync, path);
-      sync.createFile(container, blob2Object.apply(blob), options);
+      final AtmosObject object = blob2Object.apply(blob);
+      
+      try {
+         sync.createFile(container, object, options);
+         
+      } catch(KeyAlreadyExistsException e) {
+         deleteAndEnsureGone(sync, path);
+         sync.createFile(container, object, options);
+      }
       return path;
    }
 
diff --git a/apis/atmos/src/test/java/org/jclouds/atmos/blobstore/integration/AtmosLiveTest.java b/apis/atmos/src/test/java/org/jclouds/atmos/blobstore/integration/AtmosLiveTest.java
index d826318341..8b862d7cb8 100644
--- a/apis/atmos/src/test/java/org/jclouds/atmos/blobstore/integration/AtmosLiveTest.java
+++ b/apis/atmos/src/test/java/org/jclouds/atmos/blobstore/integration/AtmosLiveTest.java
@@ -32,6 +32,8 @@ public class AtmosLiveTest extends BaseBlobLiveTest {
    public AtmosLiveTest() {
       provider = "atmos";
    }
+            
+   @Override
    protected void checkMD5(String container, String name, byte[] md5) {
       // atmos does not support content-md5 yet
       assertEquals(view.getBlobStore().blobMetadata(container, name).getContentMetadata().getContentMD5(), null);
diff --git a/providers/synaptic-storage/src/test/java/org/jclouds/synaptic/storage/SynapticStorageClientLiveTest.java b/providers/synaptic-storage/src/test/java/org/jclouds/synaptic/storage/SynapticStorageClientLiveTest.java
index dd9dfd7744..c8359f08de 100644
--- a/providers/synaptic-storage/src/test/java/org/jclouds/synaptic/storage/SynapticStorageClientLiveTest.java
+++ b/providers/synaptic-storage/src/test/java/org/jclouds/synaptic/storage/SynapticStorageClientLiveTest.java
@@ -29,4 +29,7 @@ import org.testng.annotations.Test;
 @Test(groups = "live", sequential = true, testName = "SynapticStorageClientLiveTest")
 public class SynapticStorageClientLiveTest extends AtmosClientLiveTest {
 
+   public SynapticStorageClientLiveTest() {
+      provider = "synaptic-storage";
+   }
 }