C3000 modem user guide
The C3000A and C3000Z are WiFi-enabled modems with built-in router, also called gateways.
Learn about the C3000A or C3000Z modem:
WiFi connection for the C3000
- WiFi supported:
- 2.4 GHz: 802.11 b/g/n
- 5 GHz: 802.11 ac (WiFi 5)
- IP compatibility: IPv4, IPv6
You can connect devices to your WiFi network three different ways:
1. Enter your WiFi password on the device
2. Scan the join code from the Quantum Fiber app
3. Push the WPS button on your modem
Speed specifications
This gateway is tested and certified to run up to 940 Mbps on the Quantum Fiber network.
Note: Speeds reflect the maximum download speed the technology can deliver Quantum Fiber service. In-home speeds may differ based on router setup, devices and other factors.
Modem settings (GUI)
You can customize your modem settings from the GUI.
Troubleshooting the C3000
- Restarting your modem is a good first step to fix many common problems.
- Take a look at the modem lights guide to learn what those lights are telling you.
- Learn about resetting the modem to its default settings.
- Need more help? Our troubleshooting team is standing by. Contact us through your Quantum Fiber app, or by signing in to your account.
Related topics
Get the Quantum Fiber app
Manage your Quantum Fiber account
Was this information helpful?
SHOP
LEARN
© 2025 Q Fiber, LLC. All Rights Reserved. Quantum, Quantum Fiber, and Quantum Fiber Internet are trademarks of Quantum Wireless LLC and used under license to Q Fiber, LLC.