How to Connect a Router to a Modem: 7 Easy Steps for Fast, Secure Home Internet (2025)
Set up your router and modem in minutes. Follow this 7‑step guide for a faster, more secure Wi‑Fi network—ideal for any home or small office.
The Netgear Nighthawk CM1200 is one of the leading multi-gigabit cable modems on the market. It features DOCSIS 3.1 technology, making the Netgear CM1200 one of the more future-proof options available. DOCSIS 3.1 supports download speeds of up to 10Gbps and upload speeds of up to 1Gbps. Of course, DOCSIS 3.1 devices are backward compatible with previous DOCSIS versions, so even if your provider hasn't updated to the latest version yet, you'll still be able to use this device in the meantime. Upgrade today and start saving on your monthly modem rental fee!
The Netgear CM1200 DOCSIS 3.1 cable modem is compatible with Atlantic Broadband, Comcast, Cox, Time Warner & Spectrum as well as some other smaller US-based carriers. Please always make sure to call your provider before ordering (even if they're listed here) to ensure a smooth activation and complete compatibility with your setup. Luckily, the CM1200 is compatible with all wireless routers, mesh networks & other wireless devices, so feel free to use your existing router, or purchase one without hours of research.
The Netgear CM1200 supports wired download speeds of up to 10 Gbps. This is more than adequate for most Gigabit internet plans from US providers. Additionally, an upgrade to a device that supports such high speeds will future proof your network and prevent needing to upgrade, likely for the next several years. Since DOCSIS 3.1 is not available for all cable internet providers currently, Netgear has made this device backward compatible with all previous DOCSIS versions. You can use this device, even if your provider hasn't upgraded their infrastructure to DOCSIS 3.1 yet. Additionally, the CM1200 also supports wired upload speeds up to 1000 Mbps. This is more than enough to stream online, upload large files, & video chat with HD video. ModemGuides technicians highly recommend this cable modem as an all-purpose, easy to install option that will last for several years to come.
The Netgear CM1200 is designed to be easy to use and activate. Simply connect all your cables and the device will go through activation through your provider's online portal. This allows you to complete your modem activation with the CM1200 without needing to call a service technician to your home or spend hours on the phone with your provider. You can complete your activation in less than 30 minutes, from the comfort of your couch.
This modem allows you to connect a WiFi router in order to access high-speed wireless connections. You can use an Ethernet cable to connect the CM1200 cable modem to the WAN port of your existing WiFi router, WiFi System or directly to your computer and get high-speed connectivity for all your devices. Choosing a router can be difficult since there are so many options to consider, but this modem is compatible with any. For best results, ModemGuides technicians recommend choosing a Gigabit Router to pair with the Netgear CM1200.
The CM1200 supports up to four (4) public IP addresses (WAN IP) with a Comcast Business account. This allows you to host multiple servers, such as email, websites, VPN gateways and more! Additionally, you'll be able to address the challenges associated with NAT (Network Address Translation) configuration for video conferencing.
What's Included:
This Netgear cable modem is primarily used and is compatible with Atlantic Broadband, Comcast, Cox, Charter, Spectrum & Time Warner Cable services in most areas. To verify that this model will work in your area, always contact your service provider's customer service prior to placing your order with us to confirm that this model will work with your service plan. Some service plan speeds may not be supported.
Set up your router and modem in minutes. Follow this 7‑step guide for a faster, more secure Wi‑Fi network—ideal for any home or small office.
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