Im 90% sure this is caused by the new update to DC travel. The lodestone post says any standard world in a DC with any congested worlds in the same DC has greatly reduced ability for DC travel. Even Dynamis has a couple congested worlds sometimes. The congestion status changes throughout the day, and may even be changing as you are travelling, possibly causing the crashes and failures.

This is really the worst possible way to try to force everyone to stay home, it wasted 2/3 of my static's first raid day just trying to get our people onto a single DC to raid. DC travel worked fine in EW and if you transferred during down time, you could get in easily. This new system is causing 20 minute plus wait times in the middle of the lowest population downtimes even.

It's a total disaster, and the worst part is that it was intentional on SE's part.

Please revert the DC travel changes SE, either fully un-restrict it or change it back to chaos/dynamis/OCE only again, anything but this artificially limited and slowed down system.