Same happen here. My host doesn´t block anything, they say. They say there is no block of port 80, nor they block blogspot.com. In a new and updated installation of wordpress I placed one feed from a wordpress.com blog, and two different feeds from blogspot.com. Only one from blogspot always works. The other two keep giving the “* An error has occurred; the feed is probably down. Try again later.” Tried to change templates, widgets and so on in WordPress, all configs in blogspot, no avail. Didn´t find any solution anywhere.
