diff --git a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/CheckMethod.java b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/CheckMethod.java
index 59af724..b83f60d 100644
--- a/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/CheckMethod.java
+++ b/src/main/java/org/gcube/dataanalysis/dataminer/poolmanager/util/CheckMethod.java
@@ -144,6 +144,7 @@ public class CheckMethod {
 		***REMOVED***
 			***REMOVED***success = true; ***REMOVED*** something else went wrong
 	***REMOVED***
+		channel.disconnect();
 		c.disconnect();
 		session.disconnect();
 		return success;