diff --git a/embedded/lib/Display/Components/Box.hpp b/embedded/lib/Display/Components/Box.hpp
index a68cc2c..5b7b426 100644
--- a/embedded/lib/Display/Components/Box.hpp
+++ b/embedded/lib/Display/Components/Box.hpp
@@ -26,11 +26,12 @@ namespace Display
         UNDEFINED,
         TOP,
         CENTERED,
-        BOTTOM
+        BOTTOM,
+        FORCE_CENTERED
     };
 
     /**
-     * @brief Box is a virtual class which can be derived into many box elements
+     * @brief Box is an abstract class which can be derived into many box elements
      * and will be used in the 'Components' object.
      * It is composed of 4 functions which may or not be used.
      * Each box should use the Screen Interface in the Display function,
diff --git a/embedded/lib/Display/Components/Components.cpp b/embedded/lib/Display/Components/Components.cpp
index 07fc7d7..d23913b 100644
--- a/embedded/lib/Display/Components/Components.cpp
+++ b/embedded/lib/Display/Components/Components.cpp
@@ -32,8 +32,10 @@ void Components::Display()
     {
         const auto size_boxes = GetSize((*it)->getStyleHeight());
         (*it)->Display(size_boxes, totalSize);
-        // Index and verticalPadding only incrementing for the same style. (eg : it and it+1 as the same style.)
-        if (it + 1 != _boxes.end() && ((*(it+1))->getStyleHeight() == (*it)->getStyleHeight()))
+
+        /*  Index and verticalPadding only incrementing for the same style. (eg : it and it+1 as the same style.)
+            Plus, it has to not be FORCED to be incremented.*/
+        if (it + 1 != _boxes.end() && ((*(it+1))->getStyleHeight() == (*it)->getStyleHeight()) && ((*it)->getStyleHeight() != StyleHeight::FORCE_CENTERED))
             totalSize += (*it)->getHeight() + (2*(*it)->getPadding());
         else
             totalSize = 0;
diff --git a/embedded/lib/Display/Components/SpriteBox.cpp b/embedded/lib/Display/Components/SpriteBox.cpp
index 44d32bb..683da52 100644
--- a/embedded/lib/Display/Components/SpriteBox.cpp
+++ b/embedded/lib/Display/Components/SpriteBox.cpp
@@ -45,6 +45,7 @@ void SpriteBox::Display(u8g2_uint_t size, u8g2_uint_t size_pos)
     switch(this->_styleHeight)
     {
     case StyleHeight::CENTERED:
+    case StyleHeight::FORCE_CENTERED:
         // idk must be the size of all the above 
         Screen::GetInstance().getScreen().drawXBM(_x, static_cast<uint16_t>((centeredOffset / 2)) + size_pos,_width,_height,_sprite);
         break;
diff --git a/embedded/lib/Display/Components/TextBox.cpp b/embedded/lib/Display/Components/TextBox.cpp
index c0fc3e1..9494fd1 100644
--- a/embedded/lib/Display/Components/TextBox.cpp
+++ b/embedded/lib/Display/Components/TextBox.cpp
@@ -46,6 +46,7 @@ void TextBox::Display(u8g2_uint_t size, u8g2_uint_t size_pos)
     switch (this->_styleHeight)
     {
     case StyleHeight::CENTERED:
+    case StyleHeight::FORCE_CENTERED:
         Screen::GetInstance().getScreen().drawButtonUTF8(_paddingWidth + _x, static_cast<uint16_t>((centeredOffset / 2)) + size_pos + _height, _style, _textWidth, this->_paddingHeight, _paddingWidth, _text.c_str());
         break;
     case StyleHeight::BOTTOM:
diff --git a/embedded/lib/Display/Screen.cpp b/embedded/lib/Display/Screen.cpp
index 23ab7c4..244c979 100644
--- a/embedded/lib/Display/Screen.cpp
+++ b/embedded/lib/Display/Screen.cpp
@@ -5,6 +5,7 @@
 // XBM Files
 #include "Components/SpriteBox.hpp"
 #include "../Pictures/clover.xbm"
+#include "../Pictures/failed.xbm"
 
 using namespace Display;
 
@@ -30,11 +31,14 @@ void Screen::Setup(uint8_t *font)
   // Static Components
   connectingWindow.Add({std::make_shared<TextBox>(headerSetup),
                         std::make_shared<TextBox>(TextBox("connect", StyleWidth::CENTERED, StyleHeight::CENTERED, U8G2_BTN_BW0))});
+  connectionfailedWindow.Add({std::make_shared<TextBox>(headerSetup),
+    std::make_shared<TextBox>(TextBox("Failed to connect.", StyleWidth::RIGHT, StyleHeight::CENTERED, U8G2_BTN_BW0,3)),
+    std::make_shared<SpriteBox>(SpriteBox(failed_bits,failed_height,failed_width,StyleWidth::LEFT,StyleHeight::FORCE_CENTERED))});
   connectedWindow.Add({std::make_shared<TextBox>(headerSetup),
                        std::make_shared<TextBox>(TextBox("Connected to Wi-Fi !", StyleWidth::LEFT, StyleHeight::CENTERED, U8G2_BTN_BW0, 0, 2)),
                        std::make_shared<TextBox>(TextBox("IP address: ", StyleWidth::LEFT, StyleHeight::CENTERED, U8G2_BTN_BW0, 0, 2)),
                        std::make_shared<TextBox>(TextBox("addr", StyleWidth::CENTERED, StyleHeight::CENTERED, U8G2_BTN_BW0, 0, 2))});
-  loopWindow.Add(std::make_shared<SpriteBox>(SpriteBox(clover_bits,clover_height,clover_width,StyleWidth::CENTERED,StyleHeight::CENTERED)));
+  loopWindow.Add(std::make_shared<SpriteBox>(SpriteBox(clover_bits, clover_height, clover_width, StyleWidth::CENTERED, StyleHeight::CENTERED)));
 }
 
 void Screen::connecting(uint8_t state)
@@ -63,6 +67,15 @@ void Screen::connecting(uint8_t state)
   _screen->sendBuffer();
 }
 
+void Screen::notConnected()
+{
+  _screen->clearBuffer();
+  // Component
+  connectionfailedWindow.Display();
+  // Displaying
+  _screen->sendBuffer();
+}
+
 void Screen::connected(const char *ipaddress, uint8_t timing)
 {
   _screen->clearBuffer();
diff --git a/embedded/lib/Display/Screen.hpp b/embedded/lib/Display/Screen.hpp
index 9f26ff0..c7731cd 100644
--- a/embedded/lib/Display/Screen.hpp
+++ b/embedded/lib/Display/Screen.hpp
@@ -19,7 +19,8 @@ namespace Display
         }
         // Public functions
         void Setup(uint8_t *font);
-        void connecting(uint8_t state = 0);
+        void connecting(uint8_t state=0);
+        void notConnected();
         void connected(const char *ipaddress, uint8_t timing);
         void loop();
         // Getters
@@ -44,6 +45,7 @@ namespace Display
         // Static Components
         TextBox headerSetup;
         Components connectingWindow;
+        Components connectionfailedWindow;
         Components connectedWindow;
         Components loopWindow;
     };
diff --git a/embedded/lib/Pictures/failed.xbm b/embedded/lib/Pictures/failed.xbm
new file mode 100644
index 0000000..2a1ffec
--- /dev/null
+++ b/embedded/lib/Pictures/failed.xbm
@@ -0,0 +1,6 @@
+#define failed_width 16
+#define failed_height 16
+static unsigned char failed_bits[] = {
+   0x00, 0x00, 0x06, 0x60, 0x0e, 0x70, 0x1c, 0x38, 0x38, 0x1c, 0x70, 0x0e,
+   0xe0, 0x07, 0xc0, 0x03, 0xc0, 0x03, 0xe0, 0x07, 0x70, 0x0e, 0x38, 0x1c,
+   0x1c, 0x38, 0x0e, 0x70, 0x06, 0x60, 0x00, 0x00 };
diff --git a/embedded/lib/ServerHandler/ServerHandler.cpp b/embedded/lib/ServerHandler/ServerHandler.cpp
index fee89d0..8da17e4 100644
--- a/embedded/lib/ServerHandler/ServerHandler.cpp
+++ b/embedded/lib/ServerHandler/ServerHandler.cpp
@@ -1,42 +1,53 @@
 #include "ServerHandler.hpp"
 #include "../Display/Screen.hpp"
 
-ServerHandler::ServerHandler() : server(80), display_time(0) {
+ServerHandler::ServerHandler() : server(80), display_time(0), _connected(false)
+{
 }
 
 ServerHandler::~ServerHandler() {}
 
-void ServerHandler::setup(const char* ssid, const char* password) { // On utilise les scope resolution operator pour définir les méthodes la classe ServerHandle qui elle est dans hpp
+void ServerHandler::setup(const char *ssid, const char *password)
+{ // On utilise les scope resolution operator pour définir les méthodes la classe ServerHandle qui elle est dans hpp
     uint8_t state(0);
+    uint16_t tryConnection(0);
     Serial.begin(9600);
     WiFi.begin(ssid, password);
 
-    while (WiFi.status() != WL_CONNECTED) {
+    // Testing connection
+    while ((WiFi.status() != WL_CONNECTED) && (tryConnection < MAX_CONNECT_TRIES))
+    {
         delay(500);
         Display::Screen::GetInstance().connecting(state);
-        state >= 3 ? state = 0: state++;
+        state >= 3 ? state = 0 : state++;
+        tryConnection++;
     }
 
-    server.begin();
-    server.on("/", [this]() { this->handleRoot(); }); // fonction lamda pour gérer les requettes get
+    if (tryConnection < MAX_CONNECT_TRIES)
+    {
+        _connected = true;
+        server.begin();
+        server.on("/", [this]()
+                { this->handleRoot(); }); // fonction lamda pour gérer les requettes get
+    }
 }
 
-void ServerHandler::loop() {
-    if(display_time < MAX_TIME)
+void ServerHandler::loop()
+{
+    if (display_time < MAX_TIME)
     {
-        Display::Screen::GetInstance().connected(WiFi.localIP().toString().c_str(),display_time);
+        Display::Screen::GetInstance().connected(WiFi.localIP().toString().c_str(), display_time);
         display_time++;
     }
     server.handleClient();
 }
 
-bool ServerHandler::showNext()
-{
-    return (display_time >= MAX_TIME);
-}
+bool ServerHandler::showNext() { return (display_time >= MAX_TIME); }
+bool ServerHandler::isConnected() { return _connected; }
 
-void ServerHandler::handleRoot() {
-    auto& dataHandler = DataHandler::GetInstance();
+void ServerHandler::handleRoot()
+{
+    auto &dataHandler = DataHandler::GetInstance();
     String jsonFormattedData = dataHandler.getJsonData();
     server.send(200, "application/json", jsonFormattedData);
 }
diff --git a/embedded/lib/ServerHandler/ServerHandler.hpp b/embedded/lib/ServerHandler/ServerHandler.hpp
index bf233ae..20a390b 100644
--- a/embedded/lib/ServerHandler/ServerHandler.hpp
+++ b/embedded/lib/ServerHandler/ServerHandler.hpp
@@ -7,6 +7,7 @@
 #include "DataHandler.hpp"
 
 constexpr uint8_t MAX_TIME = 28;
+constexpr uint16_t MAX_CONNECT_TRIES = 20;
 
 class ServerHandler {
 public:
@@ -21,6 +22,7 @@ public:
     void loop();
     // Return if the screen needs to be changed.
     bool showNext();
+    bool isConnected();
 
 private:
     // Singleton
@@ -32,6 +34,7 @@ private:
     void handleRoot();
     ESP8266WebServer server;
     uint8_t display_time;
+    bool _connected;
 };
 
 #endif
diff --git a/embedded/platformio.ini b/embedded/platformio.ini
index 6f09bfb..1f38097 100644
--- a/embedded/platformio.ini
+++ b/embedded/platformio.ini
@@ -11,6 +11,7 @@
 [env:nodemcuv2]
 platform = espressif8266
 board = nodemcuv2
+build_flags = -fexceptions
 framework = arduino
 lib_deps = 
 	tzapu/WiFiManager@^0.16.0
diff --git a/embedded/src/main.cpp b/embedded/src/main.cpp
index 31d961b..83b1a66 100644
--- a/embedded/src/main.cpp
+++ b/embedded/src/main.cpp
@@ -28,6 +28,13 @@ void loop()
     auto& dataHandler = DataHandler::GetInstance();
     auto& screen = Display::Screen::GetInstance();
 
+    // If could not connect, show screen failure
+    if(!serverHandler.isConnected())
+    {
+        screen.notConnected();
+        return;
+    }
+
     // If serverHandler finished showing ip.
     if (serverHandler.showNext())
         screen.loop();