I have a strange problem where I am unable to connect to the web server for the podcast after using it successfully for a while. I create the feed and provide the correct URL. It is a personalized RSS feed url. Each subscriber to the podcast gets their own url (so they can track downloads to fight piracy I guess). I initially create the feed and it works fine. I am able to download and / or stream the podcast. But after a while, I can no longer connect to the server and I have to remove the feed and add it again before it will work again. When re-adding the feed, i use the same exact URL as before and it works fine for a while before I have to remove and re-add the feed again. I'm not sure what triggers the feed to no longer work. Any ideas?

Thanks!
Greg