Lord Of The Rings Online: LOTRO Hotfix Scheduled: Friday, June 15 12:00PM - 5:00PM EDT

From the launcher and the official forums:

The LOTRO servers will be brought down on Friday, June 15 from 12:00PM - 5:00PM EDT for a hotfix to correct a server stability issue. This window has been chosen as the least likely to interfere with primetime weekend hours for both Oceania and North America. Thank you for your patience!