I am getting "No block source available" for about 4 hours from now. Tried adding nodes suggested here and deleting the Memorycoin folder, doesn't help. Given that many are reporting the same issue here I think there is some general network problem that emerged several hours ago.
Mine just resolved itself after a few dozen tries at deleting everything!
Same here. Deleted the appdata folder (making sure to save my wallet.dat), then added the new nodes posted, and after 10 minutes I started getting connections. Up to 5 now.