This is a gently used unit that the day we changed from Xfinity/ Comcast it was working fine, it has been factory reset and as you can see in the pictures all lights work. If your not going to use it with Comcast confirm with your cable company that this Arris model # will work with their system... The ARRIS SURFboard SBG7600AC2 is a high-speed cable modem and AC2350 Wi-Fi router that delivers fast and reliable internet connectivity for your home or office network. With DOCSIS 3.0 standard support and a maximum LAN data rate of 1000 Mbps, this modem provides smooth and seamless internet access. The sleek black design and four LAN ports make it a versatile networking solution for multiple devices. The ARRIS brand ensures quality and reliability in providing networking services.