Menu Showing Top Headers

I migrated a site I built using the Frontier Theme. The Top Nav has child pages. Say for example you have a menu item called “Our Products” that lists a group of pages with products. If you click on a sub page (a product say awnings) it shows at the top a different menu at the start with Home, Our Products, Awnings, then the rest of the top nav menu. Is there any way to not get it to display that menu change, and always keep it static. I have one site where this works, but for some reason the other site doesn’t work the same way? Thanks.