Time: August 24th 2013, spanning throughout the day in between maintenance periods.
Frequency: Multiple events
World name: Leviathan
Character name: Gee Illdari
NPC name: Many
Monster name: N/A
Class/level: THM/25
Party or solo: Solo
Race: Lalafell Male
In-game time: N/A
Area and coordinates: South Shroud, Duty Finder, Eastern Thanalan, etc
Steps: Have attempted to complete storyline quests, duty finder dungeons, duty finder guildhests, level 25 class quests, etc. Receiving the following errors:
A system error occurred during event movement
Unable to connect to Duty Finder server, please try again later.

Immediately following maintenance this afternoon I was able to complete one instanced quest but following that quest I have had everything from black screens that required an Alt-F4 to get out of it, to incredibly long load times resulting in returning to the NPC with the above errors.

Connection Specs
Type of internet connection/provider: High Speed Cable