I've had the same issue since yesterday (~24 hours now). There are similar posts on the LotRO page on Facebook, and doesn't seem to be any clue or response from anyone "in the know". I'd suggest those of us currently having this issue start opening tickets and wait for support to respond.
I was otherwise on Riddermark earlier today with no issues (same yesterday).
Mac mini Server (mid 2011; Intel Core i7 quad core 2 GHz/8GB) • OS X 10.10 • Parallels 9 • Windows 7 SP1