DIRECT ANSWER
Move the ship close to the pier ladder, stop securely, and connect two cables. Merely reaching the berth point may not advance the tutorial.
Exact fix
Use this order before restarting the tutorial.
- Approach the marked berth at low speed
- Move the vessel beside the pier ladder
- Bring the ship to a controlled stop
- Open the docking or mooring interaction
- Connect both required cables
- Wait for the objective to update
If it still does not advance
Reposition slightly closer and more parallel, confirm both lines are attached, then retry from a fresh tutorial session and report the build if the trigger still fails.