Block Signals not Working, help!!!

Hello, I am trying to use block signals to prevent train crash. I have used "Signal QR 04" for the block signals and they have shown the lights correctly. The trains are produced at 1-minute intervals (for test purpose) by the portal and they are given "Drive to" commands.

I did not modify the speed limits of the tracks, they are still 65kph (max speed of the trains is 60kph)

However, in the test, the trains do not care of the red lights and continue to crash into the front train.

What happens? How can I solve the problem?

http://www.youtube.com/watch?v=jqdzsQ-zcFI

If the AI commands are working, you should not be seeing the control panel on the right. The fact that the control panel shows the train with brakes activated at neutral, shows that there's something wrong with either the portal, the station, or the train itself. My suggestion is to emit less frequently i.e. 5 minutes instead of 1. If that doesn't work, try changing the consist to something else, i.e. Bombardier MN M7A. If that doesn't work, try replacing the station with k_station_invisible_140m_low_1.