Using your C844G modem

Learn about using your C844G modem/router, including features and specs, popular modem settings, and troubleshooting. You can also watch a video about controling WiFi on your C844G.

Older CenturyLink modem

This modem is being retired — time to get a replacement!

Modem setup instructions

Features & specifications

WiFi supported:

2.4 GHz: 802.11 b/g/n
5 GHz: 802.11 ac (WiFi 5)

The Calix 844G gateway modem is tested and certified to run at these speeds^* on the CenturyLink^® Fiber Internet network:

Technology Type	Tested speed
Fiber	up to 940 Mbps

^*Customer speed experiences will vary, particularly when accessing the internet wirelessly from different devices. Maximum download/upload speeds given are via a wired connection. Internet speeds are not guaranteed due to conditions outside of network control, including customer location, devices, equipment, and access over a wired or wireless connection; see centurylink.com/internetpolicy for more information.

Calix 844G info sheet (PDF)

Top modem settings and tasks

Learn how to manage your internet and WiFi network using your modem. Below are some of our most popular topics. You can also visit the modem settings guide for a complete overview of settings and options.

How to read the modem lights

Connect devices to your WiFi network

2.4 vs. 5 GHz wireless frequencies

Connect using WPS

WAN setup (advanced)

The following instructions may also apply in connecting some TVs, computers and other devices to your router's WiFi network.

If you are trying to connect a device to your router that happens to contain "special characters" in the device name, you will need to adjust the modem settings. Follow the steps below before completing the device connection.

1. Open a web browser and type in http://192.168.0.1 to go to your modem user interface (GUI).

2. Log in using the "Admin Username" and "Admin Password" shown on the modem's label.

3. Select the Advanced Setup section in the main menu.

4. In the left sidebar, select "DHCP Settings" under the LAN Settings section.

5. Scroll down to item #4 and select "Allow Special Characters."

6. Click "Apply" to save your changes.

Learn how to access your modem settings and how you can use them to manage your network.

Modem Settings Guide

Modem troubleshooting tips

If your internet connection is spotty or slow, try restarting your modem.
If a restart doesn't work, try our online Troubleshooter.
You might need to do a factory reset.
Chat with us for further assistance.

Download C844G 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.

Set location by ZIP Code

Using your C844G modem

Features & specifications

Top modem settings and tasks

Modem troubleshooting tips

Video: How to control your wireless settings

Top Modem Topics

Top Internet Topics

Set location by ZIP Code

Using your C844G modem

Features & specifications

Click to see speed details

Top modem settings and tasks

Connect Roku 3 / Nest Thermostat instructions

Modem troubleshooting tips

C844G firmware

Video: How to control your wireless settings

Top Modem Topics

Top Internet Topics