This is just a guess, but check to make sure you wired the router to the power distribution board properly. We had a similar issue last year.
It shouldn't be connected to the main black/red outputs, it should be connected to the voltage converter located in the KOP, and the converter should then be connected to a WAGO connector which fits in the beige-colored 12v output at the bottom of the board.
If it's connected to the black/red outputs, the motors might be drawing too much power away from the router and causing it to briefly shut off.
Take a look at this example diagram:
http://www.usfirst.org/sites/default...olenoid%29.pdf
And info about the PDB:
http://www.usfirst.org/sites/default...on%20Board.pdf
And be sure the battery is charged, of course.