As Hakuro mentioned above, this is not a new issue with Patch 2.1, many of us have been experiencing it since the beginning of 2.0. Please check out this thread as well for some more information regarding the issue and please post if you will - we have yet to receive any community rep response and maybe some extra posts will help to illustrate the scope of the problem is greater than expected.

http://forum.square-enix.com/ffxiv/t...odically/page2