diff --git a/CMakeLists.txt b/CMakeLists.txt
index b6a65dec1..3a49c1871 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -440,6 +440,7 @@ set(APP_SOURCES
   src/services/tt-rss/ttrssserviceentrypoint.cpp
   src/services/tt-rss/ttrssserviceroot.cpp
   src/services/tt-rss/gui/formeditaccount.cpp
+  src/services/tt-rss/network/ttrssnetworkfactory.cpp
 
   # NETWORK-WEB sources.
   src/network-web/basenetworkaccessmanager.cpp
diff --git a/src/gui/labelwithstatus.cpp b/src/gui/labelwithstatus.cpp
old mode 100644
new mode 100755
index 5f15541b3..90db3a608
--- a/src/gui/labelwithstatus.cpp
+++ b/src/gui/labelwithstatus.cpp
@@ -26,6 +26,8 @@ LabelWithStatus::LabelWithStatus(QWidget *parent)
   : WidgetWithStatus(parent) {
   m_wdgInput = new QLabel(this);
 
+  qobject_cast<QLabel*>(m_wdgInput)->setWordWrap(true);
+
   // Set correct size for the tool button.
   int label_height = m_wdgInput->sizeHint().height();
   m_btnStatus->setFixedSize(label_height, label_height);
diff --git a/src/services/tt-rss/definitions.h b/src/services/tt-rss/definitions.h
index e26ce4ff7..c77b7ff11 100755
--- a/src/services/tt-rss/definitions.h
+++ b/src/services/tt-rss/definitions.h
@@ -1,6 +1,9 @@
 #ifndef DEFINITIONS_H
 #define DEFINITIONS_H
 
+#define MINIMAL_API_LEVEL 10
+#define CONTENT_TYPE      "application/json; charset=utf-8"
+
 // Error when user needs to login before making an operation.
 #define NOT_LOGGED_IN     "NOT_LOGGED_IN"
 
diff --git a/src/services/tt-rss/gui/formeditaccount.cpp b/src/services/tt-rss/gui/formeditaccount.cpp
index 5d840ffce..d6ab35621 100755
--- a/src/services/tt-rss/gui/formeditaccount.cpp
+++ b/src/services/tt-rss/gui/formeditaccount.cpp
@@ -19,6 +19,8 @@
 #include "services/tt-rss/gui/formeditaccount.h"
 
 #include "services/tt-rss/ttrssserviceroot.h"
+#include "services/tt-rss/network/ttrssnetworkfactory.h"
+#include "miscellaneous/iconfactory.h"
 
 
 FormEditAccount::FormEditAccount(QWidget *parent)
@@ -26,13 +28,23 @@ FormEditAccount::FormEditAccount(QWidget *parent)
   m_ui->setupUi(this);
   m_btnOk = m_ui->m_buttonBox->button(QDialogButtonBox::Ok);
 
+  setWindowFlags(Qt::MSWindowsFixedSizeDialogHint | Qt::Dialog | Qt::WindowSystemMenuHint);
+  setWindowIcon(qApp->icons()->fromTheme(QSL("application-ttrss")));
+
   m_ui->m_txtPassword->lineEdit()->setPlaceholderText(tr("Password for your TT-RSS account."));
   m_ui->m_txtUsername->lineEdit()->setPlaceholderText(tr("Username for your TT-RSS account."));
-  m_ui->m_txtUrl->lineEdit()->setPlaceholderText(tr("URL of your TT-RSS instance WITHOUT trailing \"/api/\" string."));
+  m_ui->m_txtUrl->lineEdit()->setPlaceholderText(tr("FULL URL of your TT-RSS instance WITH trailing \"/api/\" string."));
   m_ui->m_lblTestResult->setStatus(WidgetWithStatus::Information,
                                    tr("No test done yet."),
                                    tr("Here, results of connection test are shown."));
 
+  setTabOrder(m_ui->m_txtUrl->lineEdit(), m_ui->m_txtUsername->lineEdit());
+  setTabOrder(m_ui->m_txtUsername->lineEdit(), m_ui->m_txtPassword->lineEdit());
+  setTabOrder(m_ui->m_txtPassword->lineEdit(), m_ui->m_checkShowPassword);
+  setTabOrder(m_ui->m_checkShowPassword, m_ui->m_btnTestSetup);
+  setTabOrder(m_ui->m_btnTestSetup, m_ui->m_buttonBox);
+
+  connect(m_ui->m_checkShowPassword, SIGNAL(toggled(bool)), this, SLOT(displayPassword(bool)));
   connect(m_ui->m_buttonBox, SIGNAL(accepted()), this, SLOT(onClickedOk()));
   connect(m_ui->m_buttonBox, SIGNAL(rejected()), this, SLOT(onClickedCancel()));
   connect(m_ui->m_txtPassword->lineEdit(), SIGNAL(textEdited(QString)), this, SLOT(onPasswordChanged()));
@@ -47,6 +59,7 @@ FormEditAccount::FormEditAccount(QWidget *parent)
   onUsernameChanged();
   onUrlChanged();
   checkOkButton();
+  displayPassword(false);
 }
 
 FormEditAccount::~FormEditAccount() {
@@ -65,8 +78,27 @@ void FormEditAccount::execForEdit(TtRssServiceRoot *existing_root) {
   exec();
 }
 
-void FormEditAccount::performTest() {
+void FormEditAccount::displayPassword(bool display) {
+  m_ui->m_txtPassword->lineEdit()->setEchoMode(display ? QLineEdit::Normal : QLineEdit::Password);
+}
 
+void FormEditAccount::performTest() {
+  TtRssNetworkFactory factory;
+
+  factory.setUsername(m_ui->m_txtUsername->lineEdit()->text());
+  factory.setPassword(m_ui->m_txtPassword->lineEdit()->text());
+  factory.setUrl(m_ui->m_txtUrl->lineEdit()->text());
+
+  LoginResult result = factory.login();
+
+  if (result.first == QNetworkReply::NoError) {
+
+  }
+  else {
+    m_ui->m_lblTestResult->setStatus(WidgetWithStatus::Error,
+                                     tr("Network error, have you entered correct Tiny Tiny RSS API endpoint?"),
+                                     tr("Network error, have you entered correct Tiny Tiny RSS API endpoint?"));
+  }
 }
 
 void FormEditAccount::onClickedOk() {
diff --git a/src/services/tt-rss/gui/formeditaccount.h b/src/services/tt-rss/gui/formeditaccount.h
index 6de37e3db..5e278ec6a 100755
--- a/src/services/tt-rss/gui/formeditaccount.h
+++ b/src/services/tt-rss/gui/formeditaccount.h
@@ -41,6 +41,7 @@ class FormEditAccount : public QDialog {
     void execForEdit(TtRssServiceRoot *existing_root);
 
   private slots:
+    void displayPassword(bool display);
     void performTest();
     void onClickedOk();
     void onClickedCancel();
diff --git a/src/services/tt-rss/gui/formeditaccount.ui b/src/services/tt-rss/gui/formeditaccount.ui
index 76da5638e..c604bac7e 100755
--- a/src/services/tt-rss/gui/formeditaccount.ui
+++ b/src/services/tt-rss/gui/formeditaccount.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>400</width>
+    <width>465</width>
     <height>235</height>
    </rect>
   </property>
@@ -16,19 +16,6 @@
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <layout class="QFormLayout" name="formLayout">
-     <item row="0" column="0">
-      <widget class="QLabel" name="m_lblTitle">
-       <property name="text">
-        <string>URL</string>
-       </property>
-       <property name="buddy">
-        <cstring>m_txtUrl</cstring>
-       </property>
-      </widget>
-     </item>
-     <item row="0" column="1">
-      <widget class="LineEditWithStatus" name="m_txtUrl" native="true"/>
-     </item>
      <item row="2" column="0">
       <widget class="QPushButton" name="m_btnTestSetup">
        <property name="text">
@@ -36,6 +23,19 @@
        </property>
       </widget>
      </item>
+     <item row="2" column="1">
+      <widget class="LabelWithStatus" name="m_lblTestResult" native="true">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="layoutDirection">
+        <enum>Qt::RightToLeft</enum>
+       </property>
+      </widget>
+     </item>
      <item row="1" column="0" colspan="2">
       <widget class="QGroupBox" name="m_gbAuthentication">
        <property name="toolTip">
@@ -77,21 +77,32 @@
         <item row="0" column="1">
          <widget class="LineEditWithStatus" name="m_txtUsername" native="true"/>
         </item>
+        <item row="2" column="1">
+         <widget class="QCheckBox" name="m_checkShowPassword">
+          <property name="text">
+           <string>Show password</string>
+          </property>
+         </widget>
+        </item>
        </layout>
       </widget>
      </item>
-     <item row="2" column="1">
-      <widget class="LabelWithStatus" name="m_lblTestResult" native="true">
-       <property name="sizePolicy">
-        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
-         <horstretch>0</horstretch>
-         <verstretch>0</verstretch>
-        </sizepolicy>
-       </property>
-       <property name="layoutDirection">
-        <enum>Qt::RightToLeft</enum>
-       </property>
-      </widget>
+     <item row="0" column="0" colspan="2">
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <item>
+        <widget class="QLabel" name="m_lblTitle">
+         <property name="text">
+          <string>URL</string>
+         </property>
+         <property name="buddy">
+          <cstring>m_txtUrl</cstring>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="LineEditWithStatus" name="m_txtUrl" native="true"/>
+       </item>
+      </layout>
      </item>
     </layout>
    </item>
diff --git a/src/services/tt-rss/network/ttrssnetworkfactory.cpp b/src/services/tt-rss/network/ttrssnetworkfactory.cpp
new file mode 100755
index 000000000..8c300cc77
--- /dev/null
+++ b/src/services/tt-rss/network/ttrssnetworkfactory.cpp
@@ -0,0 +1,142 @@
+// This file is part of RSS Guard.
+//
+// Copyright (C) 2011-2015 by Martin Rotter <rotter.martinos@gmail.com>
+//
+// RSS Guard is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// RSS Guard is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with RSS Guard. If not, see <http://www.gnu.org/licenses/>.
+
+#include "services/tt-rss/network/ttrssnetworkfactory.h"
+
+#include "definitions/definitions.h"
+#include "services/tt-rss/definitions.h"
+#include "network-web/networkfactory.h"
+
+
+TtRssNetworkFactory::TtRssNetworkFactory() : m_url(QString()) {
+}
+
+TtRssNetworkFactory::~TtRssNetworkFactory() {
+}
+
+QString TtRssNetworkFactory::url() const {
+  return m_url;
+}
+
+void TtRssNetworkFactory::setUrl(const QString &url) {
+  m_url = url;
+}
+
+QString TtRssNetworkFactory::username() const {
+  return m_username;
+}
+
+void TtRssNetworkFactory::setUsername(const QString &username) {
+  m_username = username;
+}
+
+QString TtRssNetworkFactory::password() const {
+  return m_password;
+}
+
+void TtRssNetworkFactory::setPassword(const QString &password) {
+  m_password = password;
+}
+
+LoginResult TtRssNetworkFactory::login() {
+  QtJson::JsonObject json;
+  json["op"] = "login";
+  json["user"] = m_username;
+  json["password"] = m_password;
+
+  QByteArray result;
+  NetworkResult res = NetworkFactory::uploadData(m_url, DOWNLOAD_TIMEOUT, QtJson::serialize(json), CONTENT_TYPE, result);
+
+  if (res.first != QNetworkReply::NoError) {
+    return LoginResult(res.first, TtRssLoginResponse());
+  }
+  else {
+    return LoginResult(res.first, TtRssLoginResponse(QString::fromUtf8(result)));
+  }
+}
+
+TtRssResponse::TtRssResponse(const QString &raw_content) {
+  m_rawContent = QtJson::parse(raw_content).toMap();
+}
+
+TtRssResponse::~TtRssResponse() {
+}
+
+bool TtRssResponse::isLoaded() const {
+  return !m_rawContent.empty();
+}
+
+int TtRssResponse::seq() const {
+  if (!isLoaded()) {
+    return -1;
+  }
+  else {
+    return m_rawContent["seq"].toInt();
+  }
+}
+
+int TtRssResponse::status() const {
+  if (!isLoaded()) {
+    return -1;
+  }
+  else {
+    return m_rawContent["status"].toInt();
+  }
+}
+
+
+TtRssLoginResponse::TtRssLoginResponse(const QString &raw_content) : TtRssResponse(raw_content) {
+}
+
+TtRssLoginResponse::~TtRssLoginResponse() {
+}
+
+int TtRssLoginResponse::apiLevel() const {
+  if (!isLoaded()) {
+    return -1;
+  }
+  else {
+    return m_rawContent["content"].toMap()["api_level"].toInt();
+  }
+}
+
+QString TtRssLoginResponse::sessionId() const {
+  if (!isLoaded()) {
+    return QString();
+  }
+  else {
+    return m_rawContent["content"].toMap()["session_id"].toString();
+  }
+}
+
+QString TtRssLoginResponse::error() const {
+  if (!isLoaded()) {
+    return QString();
+  }
+  else {
+    return m_rawContent["content"].toMap()["error"].toString();
+  }
+}
+
+bool TtRssLoginResponse::hasError() const {
+  if (!isLoaded()) {
+    return false;
+  }
+  else {
+    return m_rawContent["content"].toMap().contains("error");
+  }
+}
diff --git a/src/services/tt-rss/network/ttrssnetworkfactory.h b/src/services/tt-rss/network/ttrssnetworkfactory.h
new file mode 100755
index 000000000..52f559ec5
--- /dev/null
+++ b/src/services/tt-rss/network/ttrssnetworkfactory.h
@@ -0,0 +1,78 @@
+// This file is part of RSS Guard.
+//
+// Copyright (C) 2011-2015 by Martin Rotter <rotter.martinos@gmail.com>
+//
+// RSS Guard is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// RSS Guard is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with RSS Guard. If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef TTRSSNETWORKFACTORY_H
+#define TTRSSNETWORKFACTORY_H
+
+#include "qt-json/json.h"
+
+#include <QString>
+#include <QPair>
+#include <QNetworkReply>
+
+
+class TtRssResponse {
+  public:
+    explicit TtRssResponse(const QString &raw_content = QString());
+    virtual ~TtRssResponse();
+
+    bool isLoaded() const;
+
+    int seq() const;
+    int status() const;
+
+  protected:
+    QtJson::JsonObject m_rawContent;
+};
+
+class TtRssLoginResponse : public TtRssResponse {
+  public:
+    explicit TtRssLoginResponse(const QString &raw_content = QString());
+    virtual ~TtRssLoginResponse();
+
+    int apiLevel() const;
+    QString sessionId() const;
+    QString error() const;
+    bool hasError() const;
+};
+
+typedef QPair<QNetworkReply::NetworkError,TtRssLoginResponse> LoginResult;
+
+class TtRssNetworkFactory {
+  public:
+    explicit TtRssNetworkFactory();
+    virtual ~TtRssNetworkFactory();
+
+    QString url() const;
+    void setUrl(const QString &url);
+
+    QString username() const;
+    void setUsername(const QString &username);
+
+    QString password() const;
+    void setPassword(const QString &password);
+
+    // Operations.
+    LoginResult login();
+
+  private:
+    QString m_url;
+    QString m_username;
+    QString m_password;
+};
+
+#endif // TTRSSNETWORKFACTORY_H