If your Internet is running slowly or you're experiencing other connectivity issues with your Comcast router or modem, it's a good idea to either reset your gateway to factory defaults or simply restart it.
The exact method for resetting your Xfinity router or modem can vary slightly by model. For Comcast router/modem combos, resetting the router to factory settings will also reset the modem -- thus, the terms "router", "modem", and "gateway" are often used interchangeably.
Resetting router or modem
Resetting your modem will wipe all previous router configuration -- including wifi network name, password, login information, etc. -- thus restoring it to factory defaults. This is different than restarting your router, which does not clear any settings and simply brings your network down and back up.
Restarting router or modem
To restart your Comcast router (without clearing any settings), simply unplug it, wait at least 30 seconds, and plug it back in.
To reset your Comcast router, use the following steps: