It's frustrating that the problem is occurring at all, but SE isn't helping themselves with their handling of the problem either.
This beta isn't just one last time for us to test in-game systems and play around with everything, it's also a live test of the system outside the game as well. Open beta is SE putting themselves on public display and saying "This is how awesome we will be for a live game". Problems happen, and there's only so much to be done to prevent them, but how you react to them is important too.
So far, the reactions to the 90000 error and the 3102 error was a single official posting on the beta forum to list your character name and server if you were hit with the 3102 error. When I went to sleep last night, that page had hit 700 pages. By this morning, the forum was being hammered to the point where the forums themselves are down. In the meantime, on the launcher and the main FFXIV website we're seeing no specific information that they are working on these problems.
I don't know if they realize it or not, but this is essentially a dry run for if something were to go wrong while the game was live, and they're frankly doing a horrible job in both reaction and PR. Anybody who was playing FFXI when the infamous R0 problem was happening can attest to the fact that this is pretty close to what they used to do so they aren't exactly learning from their mistakes.
Valion, San d'Oria - Retired
Valion Chevalier, Limsa Lominsa
50 All Classes
"Please, I have had too much of the stupid today. Please wait until tomorrow to say these things so my tolerance has refreshed." -New Gold Dreams (another short-lived webcomic)