Many have had trouble getting into the servers due to two main causes, one there were problems in the configuration that have been worked on hard and fixed as they appeared. And second the huge number of people from NA/EU trying to enter the game early access. The Producer Yoshi San posted a very nice apology and explanation and in case you missed it or did not look, here it is from the dev notes, he is a person of great integrity and compassion and I strongly feel we should be understanding and patient, and look forward to when we can all play together as soon as possible. I am sure that they are doing all that is humanly possible.

An Apology to Our Players Using NA/EU Data Centers

On behalf of the FINAL FANTASY XIV: A Realm Reborn Development Team, I would like to extend my deepest apologies to those Early Access participants who have had difficulty using the NA/EU data centers.

In response to a variety of issues, we have conducted emergency maintenance several times over the past few days. The first instance, which was conducted six hours following the beginning of early access, was for the purpose of addressing the errors 90000 and 3000, which were first discovered during phase 4 of the beta test.

Our server team then began taking measures to improve the performance of the lobby and duty finder servers. The subsequent emergency maintenance was necessary to implement their changes.

This maintenance proceeded as planned, and afterwards we verified that the stability of instanced battles and the duty finder was much improved. However, we then discovered that certain lobby servers had been improperly configured, and we were forced to conduct another brief maintenance to resolve this issue.

Although we have successfully addressed a number of serious issues in the past several days, we have nevertheless decided to implement login restrictions for the time being due to the extremely heavy load being placed upon the servers. In this way, we can ensure that the maximum number of players can play the game without risking a sever crash. I know no one wants to wait to log in, but I hope you all understand why we believe this precaution is necessary.

Once again, I would like to sincerely apologize to all our players who have been unable to enjoy Early Access due to the tremendous congestion, the ensuing issues, and the frequent maintenance.

Everyone on the development and operations teams is dedicated to providing the best possible experience for our customers, and we will continue to do our utmost to resolve the remaining and any future issues.

FINAL FANTASY XIV Producer/Director, Naoki Yoshida
Thank you Yoshi San.