Filter to add current-menu-item to menu on page load. The class does not get added to pages used as an archive. This is the solution, so you can get your active/hover ability back. You'll need to know the ID of the menu item which you can grab from developer's tools.

Add current menu item to archive page

/*****
This gets placed in your functions.php file of your theme.
Change the menu-item-# to your specific menu class identifier
***********/

add_filter('nav_menu_css_class', 'special_nav_class', 10, 2);
function special_nav_class($classes, $item) {
	if (in_array('menu-item-#', $classes)) {
		$classes[] = 'current-menu-item current_page_item';
	}
	return $classes;
}