I've just set up my first patrol route but I'm having trouble getting my dwarves to patrol it. It is a simple two waypoint route across the top of my realm but squads assigned to patrol it just go to the second waypoint and stand there. Do I need to do something special to get them to walk back and forth? What else could be wrong?
You likely haven't set them to the "Patrol route (X)" alert.
After creating the route you need to make sure they are on the patrolling schedule in the miltary scheduler.