what kind of security device do you have?
If you are using netcard like device, it should be one like
/dev/lan0 or if it is a HIL box you have to try to increase the
number. Check the position in the chain (keybord, tablet, ecc and mouse in the end) the position in the chain should be the number.
It seems to me, it is pointing on the keyboard (zero in the end).
I'm recalling it from memories, so take it with springs!
stefano