Using your C3000 modem

Learn about using your C3000A or C3000Z modem/router, including features and specs, popular modem settings, and troubleshooting. You can also watch a video about controling WiFi on your C3000.

Recommended CenturyLink modem

Note: The Actiontec C3000A is being phased out of use. The Zyxel C3000Z is still one of our recommended newer modems.

Modem setup instructions

Features & specifications

WiFi supported:

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

The Actiontec C3000A and Zyxel C3000Z gateway modems are tested and certified to run at these speeds^* on the CenturyLink^® High-Speed Internet network:

Technology Type	Tested speed
ADSL	up to 7 Mbps
ADSL2+	up to 20 Mbps (40 Mbps pair bond)
VDSL	up to 100 (140 Mbps pair bond)
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.

Zyxel C3000Z 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

Manual WAN setup (advanced)

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

Modem Settings Guide