[FMC Speed Issue (FT-175)]

I have a hard speed/altitude restriction on a STAR (240kt/8000'). This is programmed into the FMC and it behaves properly in VNAV mode. After that waypoint with the restrictions the aircraft starts the climb normally. But after 10000' the speed does not increase past 250kt and remains there throughout the climb, although the FMC clearly displays a higher speed (290kt). The initial climb is the runway heading followed by vectors to the first waypoint (the one with the restrictions). I use the Direct To method to navigate to the first waypoint since the STAR shows "vectors" to that waypoint after departure. I tried to switch to manual speed but it would still not allow me to go past 250kt.

 

EJets2, FSX SP2

Thanks, Dan