Search product FAQs here, and get answers to your most pressing issues. You can also visit our Consumer Support website for more detailed information.

SURFboard® Cable Modems

Why own your modem?

Most people that lease equipment from their Internet Service Provider (ISP) keep their modem for several years. Renting a modem from your ISP can cost an average of $100 per year. In just this amount of time you could own your own modem, one with better performance and faster speeds. So stop leasing and start saving today! People tend to upgrade their routers more often than their modems. Why? Because they typically purchase this equipment on their own and when speeds slow down, many people assume it’s the router. The modem is the backbone of a home network. Upgrading the router and the modem together, will ensure your home network is running at peak performance.

Which products are compatible with my modem?

All SURFboard products are compatible with all U.S. Cable providers.

ARRIS engineers also perform rigorous testing in real-life environments with a multitude of devices such as gaming consoles, Smart TVs, tablets, mobile phones and much more to ensure seamless integration into your home network.

SURFboard Modems are IPv6 compatible – it’s the latest Internet standard, which allows for multiple, simultaneous browsing sessions on multiple devices.

What is a DOCSIS® 3.0 modem?

DOCSIS®, which stands for Data Over Cable Service Interface Specification is a technology standard used by cable operators to provide Internet access.

With the highest speeds currently available to consumers, DOCSIS® 3.0 Cable Modems enable real-time gaming experiences with virtually no lag and HD video streams with no jitter or buffering. The modem is the backbone to any home network. Power it with the fastest speeds of a DOCSIS® 3.0 modem.

What is modem & Wi-Fi router?

A Modem & Wi-Fi Router is an all-in-one device that combines a high-speed cable modem (delivers internet access) with a Wi-Fi Router (allows you to share one internet connection and network multiple devices). The combined device saves you money, energy and desk space.

Our products have been put through rigorous testing to ensure that they fit seamlessly into any home network and support a multitude of devices.

What's the difference between 802.11n and 802.11ac Wi-Fi?

Today’s wireless products are based on either 802.11n or 802.11ac radio standards. Devices may have one, two or three radios: 2.4 GHz, 5 GHz, or dual 5 GHz. These configurations may be designed to work as one or the other, or a dual-band or tri- band concurrently operating radios.

802.11ac is the newest technology and offers the best throughput potential. Beamforming is also a feature supported by 802.11ac radios. This technology focuses the radio signals on the client device location for better performance.

Depending on the device’s antenna configuration you Wi-Fi throughput will vary for each standard. Examples of throughputs:

  • 2.4 GHz with 802.11n 2×2 antennas = 300 Mbps
  • 2.4 GHz with 802.11n 3×3 antennas = 450 Mbps
  • 2.4 GHz with 802.11ac 3×3 antennas = 600 Mbps
  • 5 GHz with 802.11ac 2×2 antennas = 900 Mbps
  • 5 GHz with 802-11ac 3×3 antennas = 1300 Mbps
Why do I need gigabit ethernet ports?

A multi-port Ethernet device – the ultimate high-speed connectivity for lightning fast streaming needs – allows you to connect several devices to a secure, high-speed, interference-free Internet connection.

Two years of free product support.

Slow internet speeds, lost internet connection, intermittent or poor wireless range? You can rely on ARRIS. We provide real-time, one-on-one out of warranty phone support for $39.99.

Chat and email support is always free. Start here!




We also offer support for legacy and discontinued products

Whether you’re looking for a replacement battery or a manual for a discontinued ARRIS product, chances are you can find it on our consumer support site. You can also get support for older cable equipment or register your new product to get support today under warranty.