Actiontec C1900A Product Manual

Setting up your Actiontec C1900A doesn’t have to be hard! All you’ll need to do to get online quickly, is follow these steps.

Start by unpacking the box and identifying the modem, cables, and instruction card. If needed, you can download the same instructions below.

CenturyLink recommends downloading and installing the “My CenturyLink” app on your iOS or Android device to complete installation. It not only makes the setup process a breeze, but is also great for managing your CenturyLink services, billing and support going forward.
If you prefer to use your computer for installation, just follow the QuickConnect process when you get to step 4 to finish setup.

The next task is to find the best spot for your modem. Where it is placed can have a huge impact on your wireless performance.

  • Find a central location in your house, avoiding closets or other closed-off areas to ensure that all devices in your home get a strong wireless signal from the router.
  • Choose a spot with good air circulation that doesn’t get hot, as excessive heat can cause electronics to perform poorly.

Drawing of common don't

Now it’s time to get your modem hooked up.

  1. Plug the black power cord into a wall outlet and into the power port on the back of the modem.
  2. Plug one end of the green cord into the green DSL port on back of the modem, and the other end into a working phone jack.
  3. Finally, plug one end of the yellow Ethernet cord into one of the Ethernet ports on the modem, and the other end into your computer’s Ethernet port.

Note: Your modem may look different from the one in the image, but the ports will be similar.

Note: If you are using a tablet or newer laptop, you may not have an Ethernet port on your device. That’s okay. If your device doesn’t have Ethernet, you can instead connect to WiFi using the SSID and security key on the bottom of the modem.

At this point, you are ready to activate your service! You can proceed using the mobile app or the QuickConnect site on a browser — either one will walk you through the steps to finish installing service.

Option 1: In the My CenturyLink mobile app, go into the Install my New Modem section.

Option 2: Open a browser on your computer and go to http://connect.centurylink.com, then follow the steps to complete the installation process using QuickConnect. And don’t worry — if your computer is connected to the modem, you will be able to access this site even before your internet service is fully activated.

While completing the installation process, the lights on your modem will tell you its connection status. Your modem may look different from the one in the images below, but the lights will function in the same way.

Look at the row of status lights on your modem. What color is the INTERNET light?

It’s GREEN

You’re finished!
Once the internet light is green, you’re connected to the internet and you can get online!

It’s AMBER

You need to finish your setup
If the internet light is amber/orange, this means the setup process is not yet complete or you have not yet accepted the user agreement. Use the My CenturyLink mobile app or browse to http://connect.centurylink.com, and follow the prompts to finish setup.

It’s RED

If the internet light is red, this means a connection failure has occurred. Try disconnecting everything (DSL and power cords), waiting a few minutes, and repeating steps 2 and 3. If you still get a red light, you will need to chat with a CenturyLink support agent to get further troubleshooting help.

Configure WAN Settings on your CenturyLink Modem

Getting your WAN settings can be a challenge, especially if you have little experience working with networking equipment, or are short on time. In either case, we’d like to help make the process easier. WAN settings are important because they allow you to change the protocol and addressing type required by CenturyLink for internet access. We don’t recommend changing these settings unless you’re instructed to do so by a CenturyLink technician.

First, access the WAN settings

There are a few different types of connections that can be set up, but all configuration types will begin with the same 5 steps.

1.  Connect a device, such as a computer or tablet, to the internet through WiFi or using an Ethernet cable connected to your modem.

2.  Open a web browser and type http://192.168.0.1 into the web address field.

3.  Log in to the modem’s online user interface (Modem GUI) using your Administrator Username and Administrator Password. Unless you have changed the default settings, you can find this information on the modem’s sticker. Note that these are different from your wireless SSID and security key.

Locate Admin Username/Password on the modem sticker

4.  Select “Advanced Setup.”

5.  Select “WAN Settings” in the left sidebar. This menu option may appear beneath the WAN Settings section, or the IP Addressing section, depending on your modem model.

A PPP connection is used by some providers to deliver your internet. The DSL light on the modem should turn solid green before configuring this setting.

 

Start by following steps 1-5 above to access your modem’s WAN settings. Then continue with step 6:

6.  Select “PPPoE” for the ISP Protocol.

7.  Enter the PPP username and password details:
  • Enter your PPP username.
  • Enter your PPP password.
  • Enter the password again to confirm.
  • Select “Enable” for “PPP Auto Connect.”
  • Select “Disable” for “No PPP Credentials.”

 

PPPoE settings

Note: If you don’t know your PPP username or password, chat with tech support.

From here, follow the steps specific to your type of PPPoE setup:

PPPoE with dynamic IP address

This setup applies to 99% of PPPoE customers.
Make sure you’ve completed steps 1-7 above, then continue with step 8: 

8.  Select “Dynamic IP” for the IP Addressing Type.

9.  Select “Dynamic DNS” for the DNS type.

10.  Select “Apply” to save your changes.

PPPoE with a single static IP address

This applies only if you have leased a single IP address. Please note that static IPs are not compatible with Prism® TV and are not available in all areas.
Make sure you’ve completed steps 1-7 above before continuing with step 8: 

8.  Enter the IP addressing details.

  • Select “Single Static IP” for the IP Addressing Type.
  • Enter the single static IP address that you leased.

9.  Select “Dynamic DNS” for the DNS type.

10.  Select “Apply” to save your changes.

Block of static IPs on a public or private LAN

This applies only if you have leased a block of IP addresses and want a private or a public LAN (local area network) Subnet. Please note that static IPs are not compatible with Prism® TV and are not available in all areas.
  • The Private LAN Subnet tells the modem to assign all devices on the network a private LAN IP address (e.g. 192.168.0.4). The exception is for any device that has the TCP/IP settings manually configured with an “assignable” WAN IP address from your block.
  • The Public LAN Subnet option tells the modem to assign all devices on the network an assignable WAN IP address from your block of leased addresses.
Make sure you’ve completed steps 1-7 above before continuing with step 8:

8.  Enter the IP addressing details.

  • Select “Block of Static IP Addresses” for the IP Addressing Type.
  • Enter the “Gateway Address” that was provided to you when you leased your static IP addresses.
  • Enter the “Subnet Mask” that was provided to you when you leased your static IP addresses.
  • Select either “Private LAN Subnet” or “Public LAN Subnet” for “LAN DHCP Addressing.”

9.  Enter the DNS details.

  • Select “Static DNS” for the DNS type.
  • Enter your Primary and Secondary DNS (DNS lookup).

10.  Select “Apply” to save your changes.

The DSL light on the modem should turn solid green before configuring this setting.
Start by following steps 1-5 above to access your modem’s WAN settings. Then continue with step 6: 

6.  Select “IPoE” for the ISP Protocol.

7.  Select “Dynamic” or “Static IP” for the IP Addressing Type.

7b.  For Static IP only, enter your IP address, subnet mask, and gateway address.

8.  For dynamic IP, select “Dynamic DNS.” For static IP, select “Static DNS.” Enter the primary and secondary DNS for your area.

9.  Select “Apply” to save your changes.

The DSL light on the modem should turn solid green before configuring this setting.
Start by following steps 1-5 above to access your modem’s WAN settings. Then continue with step 6: 

6.  Select “Transparent Bridging” for the ISP Protocol.

7.  Chat with tech support to get the transport mode (VLAN Setting) that works in your area (not available in all areas).

8.  Select “Apply” to save your changes.

How to Reset Your Actiontec C1900A

Resetting your Actiontec C1900A takes about 5 minutes and can be a game-changer when troubleshooting network issues, or if you simply just forgot the WiFi password. Follow these instructions to factory reset your C1900A.

  1. Plug in your modem to the power supply cable, and then make sure the other end is plugged into an electrical wall outlet.
  2. Wait 3-5 minutes for the C1900A to fully power up.
  3. Locate the reset button on the back of your modem. It will usually be a small hole on the back where all the other ports are located.
  4. Press and hold down the reset button for 20-30 seconds, or until you see the lights on the front turn amber.
  5. After the lights change color, release the reset button and allow the device to reboot.

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