How are you connecting to the robot? When you look at the driver station, does it show a green light next to communication and next to code? Does the driver station allow you to enable the robot? What is the robot signal light (the big orange blinky light) do when the robot is enabled?
It's a lot of questions, but answering them should give us a better idea of what the real problem is.
One of the most common issues when coming home from competition is the radio - you get it set up at competition with some wireless encryption stuff you don't have back at home. Download and run the "2013 FRC Bridge Configuration Utility", to make sure you can connect over wireless to your robot. You can find it here:
http://www.usfirst.org/roboticsprogr...ical-Resources