CenturyLink Calix 844G GigaCenter User Manual

Introduction

The CenturyLink C844G GigaCenter is an integrated access and gateway solution designed to deliver advanced network management and software features, enabling a high-speed internet experience throughout your home. This device terminates a GPON fiber optic link at your premises and provides carrier-class Wi-Fi and Gigabit Ethernet interfaces for various multimedia devices. It supports gigabit broadband data, Prism IP video, and VoIP or TDM based voice services over a single fiber connection.

Utilizing 802.11ac 5GHz technology with 4x4 multi-user multiple-input and multiple-output (MU-MIMO) and beamforming, the C844G GigaCenter extends the access network inside the home, establishing a strategic location for the delivery and control of broadband services. It also includes a USB port for home networking with other Ethernet appliances. The GigaCenter is engineered for optimal whole-home coverage with simultaneous dual-band 2.4GHz and 5GHz operation and dynamic beamforming at 5GHz, supporting high-power 2x2 MIMO spatial diversity at 2.4GHz and 4x4 MU-MIMO at 5GHz for maximum performance.

Product Overview

Figure 1: Front view of the Calix 844G GigaCenter. This image shows the sleek, black, vertical design of the modem with its integrated stand, highlighting its compact form factor.

Figure 2: Rear and side panel details of the Calix 844G GigaCenter. This image displays the various ports on the back, including Ethernet and phone ports, along with a label providing default Wi-Fi SSID, password, and GUI access details.

Setup and Installation

Before You Begin

• Ensure you have an active CenturyLink fiber optic service connection.
• Locate a central area in your home for optimal Wi-Fi coverage.
• Have your CenturyLink account information ready for activation.

Connecting the GigaCenter

1. Connect the Fiber Optic Cable: Carefully connect the fiber optic cable from your wall outlet to the GPON port on the back of the GigaCenter. Ensure the connection is secure.
2. Connect Power: Plug the power adapter into the DC IN port on the GigaCenter and then into a standard electrical outlet.
3. Power On: The GigaCenter will automatically power on. Wait for the indicator lights on the front panel to stabilize. The Power, Broadband, and Wi-Fi lights should turn solid green.
4. Optional: Connect Ethernet Devices: For wired connections, connect an Ethernet cable from one of the yellow Gigabit Ethernet (GE) ports on the GigaCenter to your computer, gaming console, or other network device.
5. Optional: Connect Phone Lines: If you have voice services, connect your telephone to the green Phone 1 or Phone 2 ports.

Initial Activation

The CenturyLink C844G GigaCenter features a "Smart Activate" function for easy setup. A CenturyLink field technician can install and apply your service profile using a phone or laptop, without requiring special equipment or central office assistance.

If self-activating, follow the instructions provided by CenturyLink or access the modem's GUI via a connected device:

1. Connect a computer or mobile device to the GigaCenter via Wi-Fi (using the SSID and password on the device label) or an Ethernet cable.
2. Open a web browser and navigate to the GUI Address (e.g., 192.168.0.1) found on the device label.
3. Enter the Admin Username and Admin Password from the device label to log in.
4. Follow the on-screen prompts to complete the activation process.

Operation

Indicator Lights

The front panel of the GigaCenter features several indicator lights that provide status information:

• Power: Solid Green indicates the device is powered on.
• Broadband (GPON): Solid Green indicates a successful fiber optic connection. Blinking indicates data activity.
• Wi-Fi (2.4GHz/5GHz): Solid Green indicates Wi-Fi is enabled. Blinking indicates data activity.
• Ethernet (GE1-GE4): Solid Green indicates a connected device. Blinking indicates data activity.
• Phone (Phone1/Phone2): Solid Green indicates active voice service. Blinking indicates call activity.

Connecting to Wi-Fi

The GigaCenter supports simultaneous dual-band Wi-Fi (2.4GHz and 5GHz). The default Wi-Fi network names (SSIDs) and passwords (Key/Passphrase) are printed on a label on the device (refer to Figure 2).

1. On your wireless device (smartphone, tablet, laptop), open your Wi-Fi settings.
2. Select the desired network name (SSID), e.g., "CenturyLink0041" for 2.4GHz or "CenturyLink0041-5G" for 5GHz.
3. Enter the Key/Passphrase when prompted.
4. Your device should now be connected to the internet.

Accessing the Web Interface (GUI)

You can manage your GigaCenter settings through its web-based graphical user interface (GUI).

1. Ensure your device is connected to the GigaCenter's network (wired or wireless).
2. Open a web browser and type the GUI Address (e.g., 192.168.0.1) into the address bar and press Enter.
3. Enter the Admin Username (e.g., admin) and Admin Password (e.g., sqw6Fsy6) found on the device label.
4. From the GUI, you can configure Wi-Fi settings, view connected devices, manage port forwarding, and more.

Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners or aerosols.
• Ventilation: Ensure the GigaCenter is placed in a well-ventilated area to prevent overheating. Do not block the ventilation slots.
• Firmware Updates: Firmware updates are typically managed automatically by CenturyLink. Do not attempt manual firmware updates unless instructed by technical support.
• Restarting the Device: If you experience connectivity issues, try restarting the GigaCenter by unplugging the power adapter for 10 seconds and then plugging it back in.

Troubleshooting

No Internet Connection

• Check Power: Ensure the Power light is solid green. If not, check the power connection.
• Check Broadband Light: Ensure the Broadband (GPON) light is solid green. If it's off or blinking, there might be an issue with your fiber optic connection. Contact CenturyLink support.
• Restart GigaCenter: Unplug the power cord, wait 10 seconds, then plug it back in. Allow a few minutes for the device to restart and reconnect.
• Check Cables: Ensure all Ethernet and fiber optic cables are securely connected.

Wi-Fi Connectivity Issues

• Check Wi-Fi Light: Ensure the Wi-Fi light is solid green.
• Verify Password: Double-check that you are entering the correct Wi-Fi password (Key/Passphrase) from the device label.
• Signal Strength: Move closer to the GigaCenter to improve signal strength. Obstacles like walls and large appliances can interfere with Wi-Fi signals.
• Restart Device: Restart both the GigaCenter and your wireless device.
• Change Wi-Fi Channel: If you suspect interference, you can try changing the Wi-Fi channel through the GigaCenter's web interface (advanced users).

Slow Internet Speed

• Wired vs. Wireless: Test speed with a wired Ethernet connection to determine if the issue is with the Wi-Fi or the internet service itself.
• Number of Devices: Too many devices actively using the network can slow down speeds.
• Interference: Other electronic devices (cordless phones, microwaves) can interfere with Wi-Fi signals.
• Service Plan: Verify your internet service plan with CenturyLink to ensure it meets your speed expectations.

Specifications

Key Features

• Standards-based Full Service Access Network (FSAN), ITU-T GPON compliant
• 2.4GHz and 5GHz, simultaneous dual-band operation
• Two voice lines: CenturyLink DHP SIP support
• Four Gigabit Ethernet (GE) interfaces: Symmetrical 1 Gbps bandwidth for residential IPTV and data services, Multi-rate 10/100/1000 BaseT Ethernet, autonegotiating
• Optional voice lifeline service power source with in-home battery backup and alarm monitoring
• 802.11ac 5GHz technology incorporating 4x4 MU-MIMO and beamforming
• High-power 2x2 MIMO spatial diversity at 2.4GHz
• USB port for home networking

Technical Specifications

Warranty and Support

For warranty information and technical support regarding your CenturyLink Calix 844G GigaCenter, please contact CenturyLink directly. Support resources, including FAQs and troubleshooting guides, are typically available on the official CenturyLink website.

CenturyLink Customer Support: Visit CenturyLink Support Website