Disconnecting when playing healing classes.

This might sound really odd, but anytime I play a healing class I get disconnected.
It doesn't matter if I'm in a dungeon or out in the world, I disconnect. In dungeons
it typically happens at least once. Out in the world it's a bit more random.

What's really weird is, I can play as a Warrior all day long and not get one disconnect.
The moment I switch to either Scholar or White Mage, I start getting disconnected.

Has anyone else had this kind of issue?

Edit: I forgot to add I also play Monk and don't get disconnected.