Andamiro announced a while back that they would be dropping network support for PRIME.
Earlier this week, a definite date was announced for the shutdown:
https://www.facebook.com/notes/pump-it- ... 061232708/
This means that from the 30th on, PRIME will no longer be able to connect online, rendering all network features unusable. You won't be able to log in and use any of the features linked to playing with an ID. This also means registering machine bests with your name will no longer be possible...
An update will be released that opens up all the quest zone content for offline play.