According to VRT blog …

Today the Snort Web Team made a change to the way that Snort rules are downloaded from snort.org. Hopefully this will result in faster downloads for most people. The main thing to note though is that the actual file download links have changed.

First, there is no longer any need to add an “_s” to the rule file in order to get the subscriber pack. Second, the link to the file itself has changed:

Old Link:

http://dl.snort.org/reg-rules/snortrules-snapshot-2860.tar.gz?oink_code=

New Link:

http://www.snort.org/reg-rules/snortrules-snapshot-2860.tar.gz/

You should update your PulledPork and Oinkmaster installations to reflect these changes.