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 33d0936..51c7899 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***
 			***REMOVED***success = true; ***REMOVED*** something else went wrong
 	***REMOVED***
+		channel.disconnect();
 		c.disconnect();
 		session.disconnect();
 		return success;