diff --git a/pom.xml b/pom.xml
index be4fa8e..3549538 100644
--- a/pom.xml
+++ b/pom.xml
@@ -58,13 +58,13 @@
 		<dependency>
 			<groupId>org.gcube.contentmanagement</groupId>
 			<artifactId>storage-manager-wrapper</artifactId>
-			<version>[2.6.1-SNAPSHOT, 3.0.0-SNAPSHOT)</version>
+			<version>[3.0.0-SNAPSHOT, 4.0.0-SNAPSHOT)</version>
 		</dependency>
 
 		<dependency>
 			<groupId>org.gcube.contentmanagement</groupId>
 			<artifactId>storage-manager-core</artifactId>
-			<version>[2.0.0,3.0.0-SNAPSHOT)</version>
+			<version>[3.0.0-SNAPSHOT,4.0.0-SNAPSHOT)</version>
 			<exclusions>
 				<exclusion>
 					<artifactId>slf4j-nop</artifactId>
diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java b/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
index cac6917..bdb8832 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
@@ -340,14 +340,20 @@ public class StorageIDResolver {
 	 * @return the storage client instance
 	 */
 	protected static IClient getStorageClientInstance(MemoryType memory) {
-		if ((!Objects.isNull(storageManagerClient)) && (storageManagerClient.getGcubeMemoryType().equals(memory)))
+		if ((!Objects.isNull(storageManagerClient)) && (storageManagerClient.getGcubeMemoryType().toString() == memory.toString())) {
+			LOG.debug("reusing the same storage-client object");
 			return storageManagerClient;
-		else {
+		}else {
 			if(!Objects.isNull(storageManagerClient)) {
-				LOG.debug("going to close an old storage-client instance");
-				storageManagerClient.forceClose();
+				LOG.debug("going to close an old storage-client instance on "+storageManagerClient.getGcubeMemoryType());
+				try {
+					storageManagerClient.forceClose();
+					LOG.debug("storage-client closed");
+				}catch(Exception e) {
+					LOG.warn("Some problem occurred during the close operation:"+e.getMessage()+" Going to open another connection");
+				}
 			}
-			LOG.debug("initializing a new storage-client instance");
+			LOG.debug("initializing a new storage-client instance on "+memory);
 			storageManagerClient=new StorageClient(StorageIDResolver.class.getName(), StorageIDResolver.class.getSimpleName(), STORAGEID_RESOLVER, STORAGE_ACCESS_TYPE, memory, STORAGE_BACKEND_TYPE).getClient();
 			return storageManagerClient;
 		}