I have a WP based site with a lot of pages based on custom post type. But I see a lot of 404-links in the Google Webmasters finished with /feed. It looks like default WP function, when WP adds /feed to any page and this should return history in RSS format. This is good. So my question is:
How I can make ".../feed" links working and show XML for comments on these special post type pages?
For example, my real page http://viva-games.ru/game/classic-japanese-monster-castle-2/feed returns 404, when http://viva-games.ru/game/classic-japanese-monster-castle-2 returns a page with comments. How I can make RSS link working and returning a page with XML with comments list?