I’m having trouble Installing cable box

Hello, user_fnhysp! Thank you for choosing Xfinity and joining us here on the Forums. Check out this informational video in the following link to learn what's included in your Getting Started kit, how to activate service, how to program your remote, and more! https://www.xfinity.com/support/articles/x1-self-installation-overview. The RDK-03013 error typically points to a signal or activation issue with your X1 TV box, meaning the box is having trouble communicating with the network. In many cases, this can be resolved with a couple of quick checks:

Make sure the coaxial cable is securely tightened on both the wall outlet and the back of the TV box
Try a simple system restart by unplugging the box from power for about 60 seconds, then plugging it back in

Please let me know if these steps help restore the connection and clear the error.