Comcast users may encounter error codes because of various reasons. But Comcast error codes are not difficult to troubleshoot. Here are the quick steps to fix one of the most common Comcast error codes, which is Xfinity error code XRE-02007. Start with unplugging the TV, STB, and internet modem. Then, press and hold the power button on your device for a while. Now, plug in the device and wait till you get internet access. If the error code is not fixed, check if there is any outstanding bill. If yes, make the required payment and fix the error code.