HP DC367B - Compaq Basic Port Replicator 1.2 Reference Manual page 14

Docking and Undocking
4. Align the posts on the docking station with the receptors
on the bottom of the computer, and then gently press the
computer down onto the docking station until you hear
a click. When the computer is properly aligned, the
docking station docking light is turned on.
✎
Make sure the computer is properly aligned and seated, and
fully docked. For help with most common docking problems,
refer to Appendix A, "Troubleshooting."
✎
The docking light will not be turned on when you dock the
computer unless the AC adapter is connected to the docking
station.
2–4 Reference Guide