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Using your Zyxel C1000Z modem
NOTE: This modem will be retired soon. The information below may help you use and troubleshoot this device, but for an optimized internet connection, it's time to upgrade! Learn how >
Features of the Zyxel C1000Z
WiFi supported: 2.4 GHz 802.11 b/g/n
IP compatibility: IPv4, IPv6
Works with these Brightspeed internet services:
- ADSL – up to 7 Mbps
- ADSL2 – up to 20 Mbps
- VDSL – up to 40 Mbps
Note: Listed speeds reflect the maximum download speed the technology can deliver on Brightspeed services. In-home speeds may differ based on router setup, devices and other factors.
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.
IMPORTANT NOTE: The C1000Z modem requires a two-step firmware upgrade.
- Restore the C1000Z to factory defaults via the GUI or reset button
- Reconfigure the PPP credentials and wireless settings
- Upgrade to the stepping firmware (click to download)
- Upgrade to the fully updated firmware (click to download)
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.
Quick setup
Manual network (WAN) setup
If instructed to do so by a technician, you may have to manually change the WAN settings on your modem. Visit the WAN setup page for step-by-step instructions on different WAN configurations, including PPPoE, IPoE and transparent bridging.
You can control your WiFi network by visiting your modem’s wireless settings area. Click on the options below for details and step-by-step instructions.
- Basic settings
- Wireless security
- 2.4 GHz WiFi channel setup
- SSID setup
- MAC authentication
Helpful WiFi topics
The modem status area in the user interface allows you to view several options and check the performance of your modem.
- Connection status
- DSL1 or DSL2 status
- Internet status
- Ethernet status
- Wireless status (find best channel)
- View IPv6 address
- Firewall status
- Device table
- NAT table
- Routing table
- QoS table
- Resource table
The utilities menu gives you access to several additional tools to manage and test your modem.
- Reboot
- Restore defaults
- Upgrade firmware
- Ping test
- Traceroute
- Back up settings (Configuration save)
- Diagnostic test
- Web activity log
- System log
- Time zone
Advanced settings give you even more control over your modem's configuration. Most of these are best for tech-savvy folks who are familiar with modems and networking.
Blocking & filtering
Other Settings
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
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