Error 403 forbidden accesssing Mule Release EE Repository for a licenced account

Question

I'm trying to modify a Mule API proxy, which i downloaded from Anypoint Platform portal.

When I try to build with maven I get the following error:

ERROR] Failed to execute goal on project api-gateway-sample-rest-proxy: Could not resolve dependencies for project org.mule.examples:api-gateway-sample-rest-proxy:mule-application:3.1.6: Failed to collect dependencies at com.mulesoft.anypoint:mule-http-proxy-extension:jar:mule-plugin:1.1.4: Failed to read artifact descriptor for com.mulesoft.anypoint:mule-http-proxy-extension:jar:mule-plugin:1.1.4: Could not transfer artifact com.mulesoft.anypoint:api-gateway-extensions-parent:pom:1.1.3 from/to MuleRepository (https://repository.mulesoft.org/nexus-ee/content/repositories/releases-ee/): authorization failed for https://repository.mulesoft.org/nexus-ee/content/repositories/releases-ee/com/mulesoft/anypoint/api-gateway-extensions-parent/1.1.3/api-gateway-extensions-parent-1.1.3.pom, status: 403 Forbidden -> [Help 1]

I added the credentials to the Maven settings file as posted in this guide.

Note that this error is not an 401 - Unauthorized but a forbidden. The credentials provided are good but I don't am not allowed to access resource.

My account was created under our organization using Anypoint Authentication. Our license is a Titanium license.

Where can i find the exact requirements to access this resource?

UPDATE

The settings.xml:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<settings>
    <servers> 
     <server>
      <id>MuleRepository</id>
      <username>My user name</username>
      <password>some password</password>
    </server>   
   </servers> 
    <pluginGroups> 
        <pluginGroup>org.mule.tools</pluginGroup> 
    </pluginGroups> 
    <profiles> 
        <profile> 
            <id>Mule</id> 
            <activation> 
                <activeByDefault>true</activeByDefault> 
            </activation> 
            <repositories> 
                <repository> 
                    <id>MuleRepository</id> 
                    <name>MuleEE Releases Repository</name> 
                    <url>https://repository.mulesoft.org/nexus-ee/content/repositories/releases-ee/</url> 
                    <layout>default</layout> 
                    <releases> 
                        <enabled>true</enabled> 
                    </releases> 
                    <snapshots> 
                        <enabled>true</enabled> 
                    </snapshots> 
                </repository>               
            </repositories> 
    
        </profile> 
    </profiles> 
</settings>  

The proxy pom.xml file was not changed. Anyway, here it is:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.mule.examples</groupId>
    <artifactId>api-gateway-sample-rest-proxy</artifactId>
    <version>3.1.6</version>

    <packaging>mule-application</packaging>
    <name>psh_rtn_webapi-v1-dmz_qua</name>

    <properties>
        <muleHttpConnectorVersion>1.7.2</muleHttpConnectorVersion>
        <muleMavenPluginVersion>3.5.3</muleMavenPluginVersion>
        <proxyExtensionVersion>1.1.4</proxyExtensionVersion>
        <restValidatorVersion>2.2.4</restValidatorVersion>
        <attachMuleSources>true</attachMuleSources>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.mulesoft.anypoint</groupId>
            <artifactId>mule-http-proxy-extension</artifactId>
            <version>${proxyExtensionVersion}</version>
            <classifier>mule-plugin</classifier>
        </dependency>
        <dependency>
            <groupId>com.mulesoft.anypoint</groupId>
            <artifactId>mule-rest-validator-extension</artifactId>
            <version>${restValidatorVersion}</version>
            <classifier>mule-plugin</classifier>
        </dependency>
        <dependency>
            <groupId>org.mule.connectors</groupId>
            <artifactId>mule-http-connector</artifactId>
            <version>${muleHttpConnectorVersion}</version>
            <classifier>mule-plugin</classifier>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.mule.tools.maven</groupId>
                <artifactId>mule-maven-plugin</artifactId>
                <version>${muleMavenPluginVersion}</version>
                <extensions>true</extensions>
                <configuration>
                    <classifier>mule-application</classifier>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>mule</id>
            <name>Mule Public Repository</name>
            <url>https://repository.mulesoft.org/nexus/content/repositories/public/</url>
        </repository>
        <repository>
            <id>MuleRepository</id>
            <name>Mule Release EE Repository</name>
            <url>https://repository.mulesoft.org/nexus/content/repositories/releases-ee/</url>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>mulesoft-plugin-releases</id>
            <name>MuleSoft Release Repository</name>
            <url>https://repository.mulesoft.org/releases/</url>
            <layout>default</layout>
        </pluginRepository>
        <pluginRepository>
            <id>mulesoft-plugin-snapshots</id>
            <name>MuleSoft Snapshots Repository</name>
            <url>https://repository.mulesoft.org/snapshots/</url>
            <layout>default</layout>
        </pluginRepository>
    </pluginRepositories>

    <distributionManagement>
        <downloadUrl>http://www.mulesoft.com/mule-esb-enterprise-trial-download</downloadUrl>
        <repository>
            <id>mule-ee-releases</id>
            <name>Mule Release Repository</name>
            <url>https://repository-master.mulesoft.org/nexus/content/repositories/ci-releases</url>
        </repository>
        <snapshotRepository>
            <id>mule-ee-snapshots</id>
            <name>Mule Snapshot Repository</name>
            <url>https://repository-master.mulesoft.org/nexus/content/repositories/ci-snapshots</url>
        </snapshotRepository>
    </distributionManagement>
</project>