I noticed that as well.Just noticed New App Update today....Version 1.4.2(2)..No sure what this will change but Im still On-Line No Problems Yet!!!!
Have you tried the factory reset: https://www.traegerforum.com/threads/failed-to-download-certificate-files.782/page-7#post-5408No changes with the new app update. iphone will connect to the grill, but the grill won't find the home network. This is garbage, should have never bought one of these things.