User Manual
Table Of Contents
- User Manual
- Contents
- 1 Hardware Setup
- 2 Connect to the Network and Access the Modem Router
- 3 Specify Initial Settings
- 4 Control Access to the Internet
- 5 Share a USB Storage Device Attached to the Modem Router
- USB Device Requirements
- Connect a USB Storage Device to the Modem Router
- Access a USB Drive Connected to the Modem Router From a Windows Computer
- Map a USB Device to a Windows Network Drive
- Access a USB Storage Device That Is Connected to the Modem Router From a Mac
- Control Access to the USB Drive
- Use FTP Within the Network
- View or Change Network Folders on a USB Drive
- Add a Network Folder on a USB Storage Device
- Edit a Network Folder on a USB Storage Device
- Approve USB Storage Devices
- Safely Remove a USB Storage Device
- 6 Specify Network Settings
- View or Change the WAN Settings
- Change the MTU Size
- Set Up a Default DMZ Server
- Change the Modem Router’s Device Name
- Change the LAN TCP/IP Settings
- Specify the IP Addresses That the Modem Router Assigns
- Manage LAN IP Addresses
- Use the WPS Wizard for WiFi Connections
- Specify Basic WiFi Settings
- Change the WiFi Security Option
- Set Up a WiFi Guest Network
- Control the WiFi Radios
- Specify WPS Settings
- Set Up a WiFi Access List
- Dynamic DNS
- Improve Network Connections With Universal Plug-N-Play
- 7 Manage Your Network
- View Modem Router Status
- Reboot the Modem Router
- Change the Router Mode
- View and Manage Logs of Modem Router Activity
- Manage the Modem Router Configuration File
- Change the admin Password
- View Event Logs
- Run the Ping Utility
- Run the Traceroute Utility
- View WiFi Access Points in Your Area
- View or Change the Modem Router WiFi Channel
- Remote Management
- Control the LED Settings
- 8 Specify Internet Port Settings
- 9 Troubleshooting
- A Supplemental Information
AC1200 WiFi Cable Modem Router Model C6220
Hardware Setup User Manual17
Before you call Comcast Xfinity, make sure that your account number, account phone
number, email address, and password are nearby. The cable modem’s model number is
C6220. The serial number and MAC address are on the modem router label.
Made in China
Figure 5. Modem router label
To set up your Internet connection by calling Comcast Xfinity:
1. Call Comcast Xf
inity customer service at 1-800-Xfinity (1-800-934-6489).
2. When asked, pro
vide your account information and provide the modem router’s model
number and MAC address.
3. W
ait for Comcast Xfinity to confirm that your modem router is active.
4. If you
do not get an Internet connection with the modem router, ask Comcast Xfinity to look
for your modem router online, and do one of the following depending on what Comcast
Xfinity tells you about your modem router:
• I
f the modem router is not visible, Comcast Xfinity can give you instructions to verify
why the modem router does not connect with your high-speed Internet service.
• I
f the modem router is visible to Comcast Xfinity, reboot the modem router. Check
your online status again.
Set Up Your Modem Router With Another Cable Internet
Service Provider
1. Connect your computer or mobile device to the modem router with WiFi or Ethernet:
WiFi: Use the
WiFi network name (SSID) and password on the modem router label to
connect.
Ethernet: Use a
n Ethernet cable to connect a computer to an Ethernet port on the
modem router. (Your computer must have an Ethernet port.)
2. Launch a web
browser and enter routerlogin.net or 192.168.0.1 in the address field.
3. Follow t
he prompts to:
• Agr
ee to the terms and conditions.
• Cha
nge your modem router’s admin credentials and set up security questions.
• Review your WiFi ne
twork name and password.










