diff --git a/downloadfile.cpp b/downloadfile.cpp
index 9b9a06a..37a2e57 100644
--- a/downloadfile.cpp
+++ b/downloadfile.cpp
@@ -52,7 +52,7 @@ void MainWindow::download()
 	{
 		info(DEBUGMACRO, "Adding user to server (user@server");
 		this->downloading.user = this->connexion.user;
-		server = this->connexion.user + "@" + this->downloading.server;
+		server = this->connexion.user + "@" + "[" + this->downloading.server + "]";
 		env.insert("RSYNC_PASSWORD", this->downloading.password); // Add an environment variable
 		this->downloading.process->setProcessEnvironment(env);
 	}
@@ -102,6 +102,7 @@ void MainWindow::readRsyncOutput()
 	{
 		list.clear();
 		line = QString::fromUtf8(this->downloading.process->readLine());
+		info(DEBUGMACRO, "downloading progress : " + line);
 		if (line.isEmpty())
 		{
 			break;
diff --git a/mainwindow.cpp b/mainwindow.cpp
index b3129e7..cc48823 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -370,13 +370,14 @@ void MainWindow::populateList(QString server, uint port)
 		QGuiApplication::setOverrideCursor(Qt::WaitCursor);
 
 		// verify if server is in history
-		this->settings.beginGroup("connexion/server");
+		this->settings.beginGroup("connexion/Servers");
 		if (this->settings.contains(server))
 		{
+			this->settings.beginGroup(server);
 			info(DEBUGMACRO, "Server configuration exists in settings");
 
 			// server is in history => setting port value
-			port = this->settings.value(server).toUInt();
+			port = this->settings.value("port").toUInt();
 			this->connexion.ipversion = this->settings.value("ipversion").toUInt();
 			ui->portEdit->setText(QString::number(port));
 			this->connexion.port = port;
@@ -384,8 +385,10 @@ void MainWindow::populateList(QString server, uint port)
 			ok = true;
 			//display list of services
 			//listServices();						// TODO clear in listServices
+			this->settings.endGroup();
 		}
 		this->settings.endGroup();
+		this->settings.endGroup();
 	}
 	if (port != this->connexion.port)
 	{
@@ -401,7 +404,7 @@ void MainWindow::populateList(QString server, uint port)
 		if (this->connexion.ipversion == 0)
 		{
 			this->connexion.ipversion = validateServer(server);
-			info(DEBUGMACRO, QString::number(this->connexion.ipversion));
+			info(DEBUGMACRO, "IP version : " + QString::number(this->connexion.ipversion));
 		}
 
 		if (this->connexion.ipversion != 0)
@@ -411,17 +414,27 @@ void MainWindow::populateList(QString server, uint port)
 			info(DEBUGMACRO,"Saving server configuration in settings");
 
 			// storing serverURL and port in settings
-			this->settings.setValue(server, port);
-			this->settings.setValue(server, this->connexion.ipversion);
+			this->settings.beginGroup("connnexion");
+			this->settings.beginGroup("Servers");
+			this->settings.beginGroup(server);
+			this->settings.setValue("port", port);
+			this->settings.setValue("ipversion", this->connexion.ipversion);
+			this->settings.endGroup();
+			this->settings.endGroup();
+			this->settings.endGroup();
+
 			this->settings.sync();
 			this->downloading.server = server;
+			this->downloading.port = port;
 			this->downloading.ipversion = this->connexion.ipversion;
 
 			// storing in history of combobox
 			ui->khistorycombobox->addToHistory(server);
 
 			// load and display rsync services of the rsync server
-
+		}else
+		{
+			info(DEBUGMACRO, "ERROR : Unknown IP version");
 		}
 	}else
 	{
@@ -429,7 +442,8 @@ void MainWindow::populateList(QString server, uint port)
 	}
 	listServices();
 
-	this->settings.beginGroup("Hidden/" + server);
+	this->settings.beginGroup("Hidden");
+	this->settings.beginGroup(server);
 	hidden = this->settings.allKeys();
 	if (hidden.count() > 0)
 	{
@@ -444,6 +458,7 @@ void MainWindow::populateList(QString server, uint port)
 		}
 	}
 	this->settings.endGroup();
+	this->settings.endGroup();
 	// clearing listview
 	ui->treeWidget->clear();
 	QGuiApplication::restoreOverrideCursor();  //setting cursor to default
@@ -509,7 +524,7 @@ bool MainWindow::testServerPresence(QString service, bool askPassword)
 //list services of the rsync server
 void MainWindow::listServices()
 {
-	QString cmd;
+	QString cmd = "/usr/bin/rsync";
 	QStringList param;
 	QString line;
 	QString errorRsync;
@@ -524,7 +539,6 @@ void MainWindow::listServices()
 	// clearing listwidget
 	ui->listWidget->clear();
 
-	cmd  = "/usr/bin/rsync";
 	if (this->connexion.ipversion == 0)
 	{
 		this->connexion.ipversion = whatIpVersion(this->connexion.server);
@@ -538,7 +552,12 @@ void MainWindow::listServices()
 	{
 		param << "-" + QString::number(this->connexion.ipversion).trimmed();
 		server = "[" + this->connexion.server + "]";
+	}else
+	{
+		error(tr("Error : Unknown IP version"));
+		return;
 	}
+
 	param << "--contimeout=20" << "--port=" + QString::number(this->connexion.port) << server + "::";
 	myProcess = new QProcess(this);
 
@@ -583,7 +602,7 @@ void MainWindow::listServices()
 // connect to rsync server to get list of files
 bool MainWindow::scanDir(Connexion * connexion, QTreeWidgetItem *parent, QString path)
 {
-	QString cmd;
+	QString cmd = "rsync";
 	QStringList param;
 	QStringList sizeA;
 	QString line;
@@ -593,6 +612,7 @@ bool MainWindow::scanDir(Connexion * connexion, QTreeWidgetItem *parent, QString
 	QString fileType;
 	QString date;
 	QString dirName = "";
+	QString user;
 	QProcess * myProcess;
 	QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
 	bool isDir = false;
@@ -615,122 +635,124 @@ bool MainWindow::scanDir(Connexion * connexion, QTreeWidgetItem *parent, QString
 	}
 	if (nChild == 0)
 	{
-	if (!connexion->user.isEmpty())
-	{
-		server.prepend(connexion->user + "@");
-		env.insert("RSYNC_PASSWORD", connexion->password); // Add an environment variable
-	}else
-	{
-		server.prepend("anonymous@");
-		env.insert("RSYNC_PASSWORD", "anonymous"); // Add an environment variable
-	}
-	myProcess->setProcessEnvironment(env);
 
-	info(DEBUGMACRO, "ipversion => " + QString::number(connexion->ipversion));
-	cmd = "rsync";
-	if(this->connexion.ipversion == 4 || this->connexion.ipversion == 6)
-	{
-		param << "-" + QString::number(connexion->ipversion).trimmed();
-	}
-	param << "--contimeout=20" << "--port=" + QString::number(connexion->port) << "[" + server + "]::" + path;
+		myProcess->setProcessEnvironment(env);
 
-	info(DEBUGMACRO, cmd + " " + param.join(" "));
-
-	myProcess->start(cmd, param);
-	this->rescan = true;
-
-	info(DEBUGMACRO, "Waiting server response");
-	// waiting for response of the server with a timeout of 10 seconds
-	do
-	{
-		readOk = myProcess->waitForReadyRead(10000);
-		if (readOk)
+		info(DEBUGMACRO, "ipversion => " + QString::number(connexion->ipversion));
+		if(this->connexion.ipversion == 4 || this->connexion.ipversion == 6)
 		{
-		while (!flag)
-		{
-			line = QString::fromUtf8(myProcess->readLine());
-			// line empty then buffer is empty so returning to wait new datas
-			if (line.isEmpty())
-			{
-			flag = true;
-			break;
-			}
-			if (line.contains("auth failed"))
-			{
-			myProcess->readAllStandardOutput();
-			getUserPassword(connexion);
-			if (looping <= 1)
-			{
-				this->rescan = true;
-				looping++;
-			}else
-			{
-				this->rescan = false;
-				looping = 0;
-				warning(tr("Authentication failed" ));
-			}
-			return false;
-			}
-
-			// extracting name, size and is dir/file
-			line = line.simplified();
-			filename = line.section(" ", 4);
-			if (filename != '.')
-			{
-			size = line.section(" ", 1, 1);
-			fullsize = size;
-			fullsize.remove(",");
-			sizeA = size.split(',');
-			if (sizeA.count() <= 1)
-			{
-				size = sizeA.at(0) + " " + UnitText[0] + " ";
-			}else
-			{
-				myProcess->setProcessEnvironment(env);
-				size = sizeA.at(0) + "," + sizeA.at(1).left(2) + " " + UnitText[sizeA.count()-1] + " ";
-			}
-
-			if (line[0] == "d")
-			{
-				isDir = true;
-			}else
-			{
-				isDir = false;
-			}
-
-			date = line.section(' ', 2, 2);
-			fileType = getFileType(filename);
-			if (!path.isEmpty())
-			{
-				if (path.endsWith('/'))
-				{
-				path.chop(1);
-				}
-				dirs = path.split('/');
-				dirName = dirs[dirs.size()-1];
-			}
-			addTreeItem(filename, size, fullsize, fileType, date, isDir, dirName, parent);
-			if (passwdOk == false and !connexion->password.isEmpty())
-			{
-				this->settings.setValue("Passwords/" + connexion->server + "/" + connexion->service + "/" + connexion->user, true);
-				setPassword(connexion->user, connexion->password);
-				this->settings.sync();
-			}
-			this->rescan = false;
-			}
+			param << "-" + QString::number(connexion->ipversion).trimmed();
 		}
-		flag = false;
+
+
+		if (!connexion->user.isEmpty())
+		{
+			user = connexion->user + "@";
+			env.insert("RSYNC_PASSWORD", connexion->password); // Add an environment variable
 		}else
 		{
-		if (myProcess->state() == QProcess::Running)
+			user = "anonymous@";
+			env.insert("RSYNC_PASSWORD", "anonymous"); // Add an environment variable
+		}
+		param << "--contimeout=20" << "--port=" + QString::number(connexion->port) << user + "[" + server + "]::" + path;
+
+		info(DEBUGMACRO, cmd + " " + param.join(" "));
+
+		myProcess->start(cmd, param);
+		this->rescan = true;
+
+		info(DEBUGMACRO, "Waiting server response");
+		// waiting for response of the server with a timeout of 10 seconds
+		do
 		{
-			if (myProcess->waitForFinished(10000) == 0)
+			readOk = myProcess->waitForReadyRead(10000);
+			if (readOk)
 			{
-			warning(tr("The processus does'nt respond: ") + myProcess->errorString());
+				while (!flag)
+				{
+					line = QString::fromUtf8(myProcess->readLine());
+					// line empty then buffer is empty so returning to wait new datas
+					if (line.isEmpty())
+					{
+						flag = true;
+						break;
+					}
+					if (line.contains("auth failed"))
+					{
+						myProcess->readAllStandardOutput();
+						getUserPassword(connexion);
+						if (looping <= 1)
+						{
+							this->rescan = true;
+							looping++;
+						}else
+						{
+							this->rescan = false;
+							looping = 0;
+							warning(tr("Authentication failed" ));
+						}
+						return false;
+					}
+
+					// extracting name, size and is dir/file
+					line = line.simplified();
+					filename = line.section(" ", 4);
+					if (filename != '.')
+					{
+						size = line.section(" ", 1, 1);
+						fullsize = size;
+						fullsize.remove(",");
+						sizeA = size.split(',');
+						if (sizeA.count() <= 1)
+						{
+							size = sizeA.at(0) + " " + UnitText[0] + " ";
+						}else
+						{
+							myProcess->setProcessEnvironment(env);
+							size = sizeA.at(0) + "," + sizeA.at(1).left(2) + " " + UnitText[sizeA.count()-1] + " ";
+						}
+
+						if (line[0] == "d")
+						{
+							isDir = true;
+						}else
+						{
+							isDir = false;
+						}
+
+						date = line.section(' ', 2, 2);
+						fileType = getFileType(filename);
+						if (!path.isEmpty())
+						{
+							if (path.endsWith('/'))
+							{
+								path.chop(1);
+							}
+							dirs = path.split('/');
+							dirName = dirs[dirs.size()-1];
+						}
+						addTreeItem(filename, size, fullsize, fileType, date, isDir, dirName, parent);
+						if (passwdOk == false and !connexion->password.isEmpty())
+						{
+							this->settings.setValue("Passwords/" + connexion->server + "/" + connexion->service + "/" + connexion->user, true);
+							setPassword(connexion->user, connexion->password);
+							this->settings.sync();
+						}
+						this->rescan = false;
+					}
+				}
+				flag = false;
+			}else
+			{
+				if (myProcess->state() == QProcess::Running)
+				{
+					if (myProcess->waitForFinished(10000) == 0)
+					{
+						warning(tr("The processus does'nt respond: ") + myProcess->errorString());
+					}
+				}
 			}
-		}
-		}
-	}while(readOk);
+		}while(readOk);
 	// buffer empty go to waiting new datas
 
 	testRsyncReturn(this, myProcess);
@@ -761,9 +783,10 @@ uint MainWindow::validateServer(QString server)
 		info(DEBUGMACRO, "Digging server name");
 
 		cmd = "dig";
-		param << "-t A";				// IP V4 query
-		param << "-t AAAA";				// IP V6 query
 		param << server.trimmed() ;
+		param << "A";				// IP V4 query
+		param << server.trimmed() ;
+		param << "AAAA";				// IP V6 query
 
 		info(DEBUGMACRO, cmd + " " + param.join(" "));
 
@@ -874,7 +897,8 @@ void MainWindow::addTreeItem(QString name, QString fileSize, QString fullsize, Q
 	}else
 	{
 		// item is a file
-		this->settings.beginGroup("Downloaded/");
+		this->settings.beginGroup("Downloaded");
+//TODO add to settings
 		this->settings.endGroup();
 		treeItem->setText(1,type);
 	}
@@ -1040,7 +1064,7 @@ void MainWindow::on_treeWidget_itemClicked(QTreeWidgetItem *item, bool downloadD
 		}else
 		{
 			this->downloading.savePath = this->settings.value(str).toString();
-			info(DEBUGMACRO, "saving folder" + this->downloading.savePath);
+			info(DEBUGMACRO, "saving folder : " + this->downloading.savePath);
 		}
 
 		// Item is a file
@@ -1237,7 +1261,7 @@ void MainWindow::downloadFinished(int exitCode, QProcess::ExitStatus exitStatus)
 		pos = path.lastIndexOf(" => ");
 		this->downloading.server = path.midRef(pos+4).toString();
 		path.resize(pos);
-		this->downloading.port = this->settings.value("connexion/server/" + this->downloading.server).toInt();
+		this->downloading.port = this->settings.value("connexion/Servers/" + this->downloading.server + "/port").toInt();
 		this->downloading.path = path;
 
 		//getUserPassword(true);
@@ -1331,7 +1355,7 @@ void MainWindow::loadSettings()
 	// loading connexion settings
 	// loading servers history
 	info(DEBUGMACRO, "Restoring server combobox history");
-	this->settings.beginGroup("connexion/server");
+	this->settings.beginGroup("connexion/Servers");
 	QStringList servers = this->settings.allKeys();
 	this->settings.endGroup();
 	ui->khistorycombobox->insertItems(1,this->settings.value("kHistoryComboBox").toStringList());
@@ -1498,7 +1522,7 @@ void MainWindow::loadDownloadList()
 	path.resize(pos);
 	pos = path.lastIndexOf(" => ");
 	this->downloading.server = path.midRef(pos+4).toString();
-	this->downloading.port = this->settings.value("connexion/server/" + this->downloading.server).toInt();
+	this->downloading.port = this->settings.value("connexion/Servers/" + this->downloading.server+ "/port").toInt();
 	path.resize(pos);
 	this->downloading.path = path;
 	str = "Folder/" + this->downloading.server + "/" + this->downloading.service;