VEX Net 1.0 troubleshooting.

Hello there,

OK so I have tried to link two VEX Net 1.0 keys together and for some reason it is just not working !

I have updated bot the Cortex and the Controller and all that happens is a red light starts flashing on the controller (picture shown below).

I have replaced the batteries in the joystick and it is still doing the same thing…

I hope you can help !

Image link…