If you're attempting to login to Destiny, you may be getting hit with the Error Code "Loganberry". That's because Bungie has performing server maintenance.
This shouldn't come as a surprise, as Bungie mentioned the scheduled maintenance yesterday. Still, there's always that one person who misses the original announcement and rages on the forums.
Maintenance began at 8:00am PDT (11:00am EDT) and is scheduled to condlude around 12:00pm PDT (3:00pm EDT). During this time, you will not be able to play Destiny and Bungie.net's sign-in and Companion App services may be restricted.
In the meantime, you can read up on everything we've learned about The Taken King this week and watch the newly released cinematic prologue trailer above.
