B757 Undifferentiated or Other Model
Flight Crew Last 90 Days 80; Flight Crew Total 15000; Flight Crew Type 2400
Confusion
Aircraft Equipment Problem Critical
Aircraft; Human Factors
All three autopilots failed enroute.
Reporter stated they continued on to [their destination] after all three autopilots would not hook-up during climb. The weather was good at destination for the one hour and fifteen minute flight. Reporter advised they had to fly at lower altitudes due to RVSM limits. No further information about cause of the autopilot issue. Reporter also advised that if they had been at the gate; he would have shut aircraft power down and suspects the autopilots would have been fine after powering back up.
Captain reports all three autopilots failed during climb on a B757 aircraft.