ZF2 routing by subdomain (Hostname) - zend-framework

Question

I added a subdomain on my myhost.com: reseller.myhost.com and I want it to route to my 'Reseller' module. I read this question :zend-framework-2-routing-subdomains-to-module
my reseller routing is this:
//Routing of User
'router' => array(
'routes' => array(
'Reseller' => array(
'type' => 'Hostname',
'options' => array(
'route' => 'reseller.myhost.com',
'constraints' => array(
),
'defaults' => array(
'controller' => 'Reseller\Controller\Reseller',
'action' => 'index',
),
),
'may_terminate' => true,
'child_routes' => array(
'login' => array(
'type' => 'Zend\Mvc\Router\Http\Literal',
'options' => array(
'route' => '/login',
'defaults' => array(
'action' => 'login',
),
),
),
'createAd' => array(
'type' => 'Zend\Mvc\Router\Http\Literal',
'options' => array(
'route' => '/createAd',
'defaults' => array(
'action' => 'createAd',
),
),
),
),
)
))
I expect to it go to the Reseller index action, but it instead goes to Application's index action. What should i do?
If I visit url reseller.myhost.com/login everything is ok, but if i call reseller.myhost.com it goes to index of application module.