WildFly returns "Not found" - windows

Question

Context:
I've developed a web-app on Linux Mint using JavaEE 7 on WildFly. My customer has Windows XP and I need to deploy on it. The app is done and I am trying to deploy it (for testing) on my VM on XP. The admin-console works fine. There are also no errors when deploying the app. WildFly registers the app to /app.
Problem: When I try to access the app on http://localhost:8080/app WildFly returns Forbidden if I try to access http://localhost:8080/app/hello.xhtml it returns just "Not found" (No 404).
Note: This is my first web-app and I have no idea where to troubleshoot since there are no errors in the log. Any help is much appreciated.
Java EE7
WildFly 9.0.1 Final
Windows XP SP3
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<param-name>com.sun.faces.enableMissingResourceLibraryDetection</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>BootsFaces_USETHEME</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>primefaces.THEME</param-name>
<param-value>afternoon</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE</param-name>
<param-value>true</param-value>
</context-param>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<error-page>
<exception- type>javax.faces.application.ViewExpiredException</exception-type>
<location>/desktop.xhtml</location>
</error-page>
jboss-web.xml
<?xml version="1.0" encoding="UTF-8"?>
<jboss-web xmlns="http://www.jboss.com/xml/ns/javaee">
<context-root>/app</context-root>
</jboss-web>