diff --git a/README.md b/README.md
index 867e071..f947294 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,17 @@ A simple PHP WakeOnLan UI
 ###### Installation
 
 1. Clone the repo and copy the `html` folder into your webroot
-2. Change the lines below in `config.php` to fit your mysql setup *(DO NOT CREATE DB)*
+2. Create SQL user:
+
+```bash
+$ sudo mysql
+mysql> CREATE DATABASE 'php-wol';
+mysql> CREATE USER 'username'@'localhost' IDENTIFIED BY 'password';
+mysql> GRANT ALL PRIVILEGES ON 'php-wol'.* TO 'username'@'localhost';
+mysql> FLUSH PRIVILEGES;
+
+```
+4. Change the lines below in `config.php` to fit your mysql setup
 
 ```
 private $servername = "localhost";
diff --git a/html/db.php b/html/db.php
index e0388ec..984d111 100644
--- a/html/db.php
+++ b/html/db.php
@@ -1,20 +1,19 @@
 <?php
 class Database extends PDO {
-	private string $servername = "localhost";
-	private string $username = "root";
-	private string $password = "";
-    private string $database = "php-wol";
+	private $servername = "localhost";
+	private $username = "root";
+	private $password = "";
+	private $database = "php-wol";
 	
 	function __construct() {
-	    // Get configuration
-        if (file_exists('./config.php')) {
-            [
-                "servername" => $this->servername,
-                "username" => $this->username,
-                "password" => $this->password,
-                "database" => $this->database,
-            ] = include('./config.php');
-        }
+		// Get configuration
+		if (file_exists('./config.php')) {
+			$config = include('./config.php');
+			$this->servername = $config['servername'];
+			$this->username = $config['username'];
+			$this->password = $config['password'];
+			$this->database = $config['database'];
+		}
 
 		// Create connection
 		try {
@@ -22,21 +21,26 @@ function __construct() {
 		} catch (PDOException $e) {
 			die('Connection failed: ' . $e->getMessage());
 		}
-		
-		//check if database exists
-		$st = $this->prepare("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '{$this->database}'");
-        $st->execute();
-		if($st->rowCount() <= 0) $this->create();
-		else $this->query("USE `{$this->database}`");
+		// eventually create schema
+		$this->create();
 	}
 	
 	/**
-	 * creates a new database
+	 * creates schema if it does not exists
 	 */
 	function create() {
-		$this->query("CREATE DATABASE `{$this->database}`");
+		//check if database exists
+		$st = $this->prepare("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '{$this->database}'");
+        $st->execute();
+		if($st->rowCount() <= 0) {
+			$this->query("CREATE DATABASE `{$this->database}`");
+		}
 		$this->query("USE `{$this->database}`");
-		$this->query(<<<EOL
+		
+		$st = $this->prepare("SELECT 1 FROM server");
+        $st->execute();
+		if($st->rowCount() <= 0) {
+			$q = <<<EOL
 CREATE TABLE server (
   id varchar(45) NOT NULL PRIMARY KEY,
   name varchar(30) NOT NULL,
@@ -44,8 +48,14 @@ function create() {
   mac varchar(20) UNIQUE,
   broadcast varchar(16)
 );
-EOL);
-		$this->query(<<<EOL
+EOL;
+			$this->query($q);
+		}
+		
+		$st = $this->prepare("SELECT 1 FROM user");
+        $st->execute();
+		if($st->rowCount() <= 0) {
+			$q = <<<EOL
 CREATE TABLE user (
   id int AUTO_INCREMENT NOT NULL PRIMARY KEY,
   username varchar(30) NOT NULL UNIQUE,
@@ -53,7 +63,17 @@ function create() {
   salt binary(64) NOT NULL,
   level int NOT NULL
 );
-EOL);
-		$this->query("INSERT INTO `user` (`id`, `username`, `password`, `salt`, `level`) VALUES (1, 'admin', 0xa28d2e6472c306c6c57138f5f2c6ff25498e5d3ccd9a63a1bc591f4b5fe1dedd4b4044bcf1cc0b61767f6d7ce8198d94eb432d03fa082261ab4741734f07e9b2, 0xb2c17f0341921fe13306e0d6b4c952d90ad12ce176e962f5d7f28254c51e4345accaafc5d1f003fe346ab8a1bf52330317d1007237ca8f78abd9420d4b5524a3, 3)");
+EOL;
+			$this->query($q);
+		}
+		
+		// create admin
+		$st = $this->prepare("SELECT admin FROM user");
+        $st->execute();
+		if($st->rowCount() <= 0) {
+			$this->query("INSERT INTO `user` (`id`, `username`, `password`, `salt`, `level`) VALUES (1, 'admin', 0xa28d2e6472c306c6c57138f5f2c6ff25498e5d3ccd9a63a1bc591f4b5fe1dedd4b4044bcf1cc0b61767f6d7ce8198d94eb432d03fa082261ab4741734f07e9b2, 0xb2c17f0341921fe13306e0d6b4c952d90ad12ce176e962f5d7f28254c51e4345accaafc5d1f003fe346ab8a1bf52330317d1007237ca8f78abd9420d4b5524a3, 3)");
+		}
+		
+		
 	}
 }
diff --git a/html/index.html b/html/index.html
index 733b3da..cd3ff90 100644
--- a/html/index.html
+++ b/html/index.html
@@ -1,8 +1,12 @@
 <!DOCTYPE html>
 <html>
 	<head>
-		<title>Admin Page</title>
+		<title>Wake-On-Lan</title>
 		<meta charset="UTF-8"/>
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+		<meta name="apple-mobile-web-app-title" content="WOL">
+		<meta name="apple-mobile-web-app-capable" content="yes">
+		<link rel="apple-touch-icon" href="wol.png">
 		<link rel="stylesheet" href="css/yeti.bootstrap.min.css"/>
 		<link rel="stylesheet" href="css/custom.css"/>
 		<script src="js/jquery-3.2.1.min.js"></script>
diff --git a/html/login.php b/html/login.php
index c135ea3..b9386ca 100644
--- a/html/login.php
+++ b/html/login.php
@@ -21,9 +21,9 @@
 		if ($auth->hasLevel()) {
 			if ($_POST['newpassword'] != $_POST['newpassword2'])
 				$toReturn['msg'] = 'passwords didnt match';
-			else if ($auth->login($auth->getUsername(), $_POST['password']))
+			else if (!$auth->login($auth->getUsername(), $_POST['password'])) {
 				$toReturn['msg'] = 'wrong password';
-			else {
+			} else {
 				$auth->updatePassword($_POST['newpassword']);
 				$toReturn['response'] = true;
 			}
diff --git a/html/wake.php b/html/wake.php
index 625cb65..0dfa13b 100644
--- a/html/wake.php
+++ b/html/wake.php
@@ -8,6 +8,9 @@
 	}
 	else if(isset($_POST['mac'], $_POST['broadcast'])) {
 		$broadcast =  $_POST['broadcast'];
+		if(empty($broadcast)) {
+			$broadcast = '255.255.255.255';
+		}
 		$mac_array = explode(':', $_POST['mac']);
 
 		$hwaddr = '';
diff --git a/html/wol.png b/html/wol.png
new file mode 100644
index 0000000..8af903c
Binary files /dev/null and b/html/wol.png differ