I've got an older system by today's standards that still runs the game well by my standards.
I also occasionally get booted mostly when I'm firing the 8" or 16" guns. This was more prevalent back when AH3 was in beta. Hitech did a few things which made it less frequent but as I remember it was something to do with the sound card. I still get booted sometimes if I'm on the guns for a while shelling a town, base or task group. One-eye