For the last couple of weeks, I've been travelling around the galaxy. I stopped at Coruscant, and when I tried to leave the ship, it said the docking port was closed. I waited, and tried again the next day, and then again on the next. Well, then I moved onto the next planet, which is now Sauvanor of the Wistril system. I tried to leave my ship last night, and couldn't because, again, the docking port is closed. I tried once more this morning, and it's still closed. Is this a problem with my ship, or are these ports actually closed?
Is your ship currently hovering above a facility? If so, then you can't leave it via the "Exit" button, you'd have to use the "Enter" button to enter the facility or move to an adjacent square without any facility on it.