If you've already used the reset button you can follow the step-by-step directions in the Control System manual's
Chapter 2.
At the competition the robot radio gets a security mode & code set that prevents it from working at home (until it's turned off), but if you've reset it, that takes care of that.
It would have been simpler to just turn Security off in order to get it working at home.
The robot radio (2009 KOP version) default IP is: 192.168.1.250
The DS router (not used at competitions) default IP is: 192.168.1.1
Your PC needs a static IP like: 192.168.1.5 to talk to either of them.