diff --git a/ci-scripts/cls_module_ue.py b/ci-scripts/cls_module_ue.py
index e006eb6aae0b2e8593ee8ca2d27a42b2a2c1e40f..cabd0a045de63385c7a0cc159b2e536fe06f0855 100644
--- a/ci-scripts/cls_module_ue.py
+++ b/ci-scripts/cls_module_ue.py
@@ -76,7 +76,7 @@ class Module_UE:
 			logging.debug('Starting ' + self.Process['Name'])
 			mySSH = sshconnection.SSHConnection()
 			mySSH.open(self.HostIPAddress, self.HostUsername, self.HostPassword)
-			mySSH.command('echo $USER; echo ' + self.HostPassword + ' | nohup sudo -S ' + self.Process['Cmd'] + ' ' +  self.Process['Apn'][CNType]  + ' &','\$',5)
+			mySSH.command('echo $USER; echo ' + self.HostPassword + ' | nohup sudo -S ' + self.Process['Cmd'] + ' ' +  self.Process['Apn'][CNType]  + ' > /dev/null 2>&1 &','\$',5)
 			mySSH.close()
 			#checking the process
 			time.sleep(5)
@@ -165,7 +165,7 @@ class Module_UE:
 			#delete old artifacts
 			mySSH.command('echo ' + self.HostPassword + ' | sudo -S rm -rf ci_qlog','\$',5)
 			#start Trace, artifact is created in home dir
-			mySSH.command('echo $USER; nohup sudo -E QLog/QLog -s ci_qlog -f NR5G.cfg &','\$', 5)
+			mySSH.command('echo $USER; nohup sudo -E QLog/QLog -s ci_qlog -f NR5G.cfg > /dev/null 2>&1 &','\$', 5)
 			mySSH.close()
 
 	def DisableTrace(self):
@@ -192,7 +192,7 @@ class Module_UE:
 			source='ci_qlog'
 			destination= self.LogStore + '/ci_qlog_'+now_string+'.zip'
 			#qlog artifact is zipped into the target folder
-			mySSH.command('echo $USER; echo ' + self.HostPassword + ' | nohup sudo -S zip -r '+destination+' '+source+' &','\$', 10)
+			mySSH.command('echo $USER; echo ' + self.HostPassword + ' | nohup sudo -S zip -r '+destination+' '+source+' > /dev/null 2>&1 &','\$', 10)
 			mySSH.close()
 			#post action : log cleaning to make sure enough space is reserved for the next run
 			Log_Mgt=cls_log_mgt.Log_Mgt(self.HostUsername,self.HostIPAddress, self.HostPassword, self.LogStore)
diff --git a/ci-scripts/epc.py b/ci-scripts/epc.py
index fdf77ba0070a479a57e8ec8b404b3a9180a7e397..0ae636e4f8766e4264459ec20cb612635617ce25 100644
--- a/ci-scripts/epc.py
+++ b/ci-scripts/epc.py
@@ -108,6 +108,14 @@ class EPCManagement():
 			logging.debug('Using the ltebox simulated HSS')
 			mySSH.command('if [ -d ' + self.SourceCodePath + '/scripts ]; then echo ' + self.Password + ' | sudo -S rm -Rf ' + self.SourceCodePath + '/scripts ; fi', '\$', 5)
 			mySSH.command('mkdir -p ' + self.SourceCodePath + '/scripts', '\$', 5)
+			result = re.search('hss_sim s6as diam_hss', mySSH.getBefore())
+			if result is not None:
+				mySSH.command('echo ' + self.Password + ' | sudo -S killall hss_sim', '\$', 5)
+			mySSH.command('ps aux | grep --colour=never xGw | grep -v grep', '\$', 5, silent=True)
+			result = re.search('root.*xGw', mySSH.getBefore())
+			if result is not None:
+				mySSH.command('cd /opt/ltebox/tools', '\$', 5)
+				mySSH.command('echo ' + self.Password + ' | sudo -S ./stop_ltebox', '\$', 5)
 			mySSH.command('cd /opt/hss_sim0609', '\$', 5)
 			mySSH.command('echo ' + self.Password + ' | sudo -S rm -f hss.log', '\$', 5)
 			mySSH.command('echo ' + self.Password + ' | sudo -S echo "Starting sudo session" && sudo su -c "screen -dm -S simulated_hss ./starthss"', '\$', 5)
@@ -420,6 +428,11 @@ class EPCManagement():
 			mySSH.command('cd scripts', '\$', 5)
 			time.sleep(1)
 			mySSH.command('echo ' + self.Password + ' | sudo -S screen -S simulated_hss -X quit', '\$', 5)
+			time.sleep(5)
+			mySSH.command('ps aux | grep --colour=never hss_sim | grep -v grep', '\$', 5, silent=True)
+			result = re.search('hss_sim s6as diam_hss', mySSH.getBefore())
+			if result is not None:
+				mySSH.command('echo ' + self.Password + ' | sudo -S killall hss_sim', '\$', 5)
 		else:
 			logging.error('This should not happen!')
 		mySSH.close()
@@ -446,6 +459,7 @@ class EPCManagement():
 		elif re.match('ltebox', self.Type, re.IGNORECASE):
 			mySSH.command('cd /opt/ltebox/tools', '\$', 5)
 			mySSH.command('echo ' + self.Password + ' | sudo -S ./stop_mme', '\$', 5)
+			time.sleep(5)
 		else:
 			logging.error('This should not happen!')
 		mySSH.close()
diff --git a/ci-scripts/ran.py b/ci-scripts/ran.py
index 27fc2726871b5cd483af8e8df2d9e160478e114c..90fece4381310445a5e0ec314a96e0ade6dbc35e 100644
--- a/ci-scripts/ran.py
+++ b/ci-scripts/ran.py
@@ -374,7 +374,7 @@ class RANManagement():
 				logging.debug('\u001B[1m Launching tshark on interface ' + eth_interface + '\u001B[0m')
 				pcapfile = pcapfile_prefix + self.testCase_id + '_log.pcap'
 				mySSH.command('echo ' + lPassWord + ' | sudo -S rm -f /tmp/' + pcapfile , '\$', 5)
-				mySSH.command('echo $USER; nohup sudo -E tshark  -i ' + eth_interface + ' -w /tmp/' + pcapfile + ' 2>&1 &','\$', 5)
+				mySSH.command('echo $USER; nohup sudo -E tshark  -i ' + eth_interface + ' -w /tmp/' + pcapfile + ' > /dev/null 2>&1 &','\$', 5)
 			mySSH.close()