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 >

Download the Zyxel C1000Z info sheet

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.

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

IP Addressing

Remote management

Routing

Security Settings

Top modem/router topics

View all Modem/Router topics

Top tools

Internet Speed Test

Troubleshooter & Outage Check

Where's My Technician

Service Appointment Manager

Modem Compatibility

Find Available Services

Brightspeed services support

Using your Zyxel C1000Z modem

Click to open speed and technology specifications

Modem setup

Wireless (WiFi) setup

Modem status

Utilities

Advanced setup

Top modem/router topics