Error Pinging Feed in FeedBurner and playing within iTunes Podcast

[Morgan Overton]

I'm using the correct Blogger.com link to attempt to Ping our feed:http://cachomilies.blogspot.com/ However, I keep receiving the error message below from FeedBurner: 

Your Ping resulted in an Error "We were unable to process your ping. You must ping with a URL that exactly matches the channel link (RSS) or alternate link (Atom) in your top level feed element pointing back to your website (e.g http://myblog.blogspot.com/), or use your feed URL (e.g. http://feeds.feedburner.com/myuri)."

Any advice on what I'm doing wrong and how to correct it? We have received complaints that our iTunes Podcast feed, "Richard Rohr's Homilies," isn't allowing people to listen or download anymore, yet our PodMedic and FeedMedic are all showing A+ results (except the Pinging mechanism of course). Does anyone have experience in correcting an issue like that? 

[D.J. H]

I too, would love to know how to successfully ping my feed.  I've had a couple instances where I needed to make corrections and had to wait it out because I received the same error.