ActionController::RoutingError in actionpack-1.13.2

The specific error is: ActionController::RoutingError (no route found to match "/application/setservice" with {:method=>:post}) With actionpack-1.12.5 the default route handled /application/setservice.

I have found a workaround by adding the route map.connect 'application/setservice', :controller=>'application', :action=>'setservice', :method=>:post

Why isn't the default route working for this particular form action?

Thanks

Ken