Autopilot not engaging

[Robert Freiberg]

ok, so the autopilot on my CRJ-700 will not engage at all, after searching through other threads on the issue, I can't figure out whats wrong, I'm in straight and level flight, flying on the heading toward my waypoint, Yaw Dampers on, trim set and not moving, yet I still can't get the auto pilot to engage at all, not even an engage and then immediate disengage

[Hans Hartmann]

This is usually caused by joystick/yoke signal noise. You can change the autopilot disconnect sensitivity on the OPTIONS pages in DAVE (the tablet). Try medium or low sensitivity. That should sort the issue.