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Using your Zyxel C4000 modem
Recommended Brightspeed modem
Features of the Zyxel C4000
- Secure WiFi compatible
- WiFi 6 technology with dual-band 2.4 GHz and 5 GHz 802.11ax
- Smart Connect single wireless network (SSID): Auto-selects the fastest band for each device
- Single LED status light
- Dynamic QoS: Prioritizes data through the router for smoother streaming
- Standards-based WiFi WPA3 security
Diagram of the C4000LZ modem
Modem troubleshooting tips
- Did you know? If your internet connection is spotty or slow, the best place to start is rebooting your modem.
- Still not running right? Check to see if you need to update the modem's firmware.
Tip: If the firmware link doesn't work, try another browser (Chrome is known to have issues with this kind of link). Or, right-click the link, select "copy link address", then paste the link into a new browser tab.
Setting up new service? Please note that a phone jack is required to set up Brightspeed internet service in your home. If you don't have a jack, chat with us to have one installed.
Top modem/router topics
- Set up your modem and activate internet
- Connect devices to your WiFi network
- Should you use 2.4 or 5 GHz WiFi?
- Brightspeed compatible modems
- How to read your modem lights
- When and how to use modem reset
- How to return a modem
- How to upgrade your modem's firmware
- Modem or router: What's the difference?
View all Modem/Router topics
Secure WiFi
- Security for your home or business network and all connected devices
- Manage devices
- Control content
Introducing WiFi 6
WiFi 6 is the next generation in-home WiFi technology, designed for the ever-increasing demand of connected homes and gigabit connections. Compared to WiFi 5, it delivers:
- Up to 3x the connectivity speed
- Up to 4x the data capacity
- Up to 75% less lag time (latency) for gaming and video applications
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