CISCO DPC3939 XB3 Cable Modem for Xfinity

Cisco DPC3939 Product Details

Will this work with my internet company?

This Cisco modem is primarily used and is compatible with Xfinity and other major cable internet providers in most areas. To verify that this model will work in your area, always contact your service provider’s customer service prior to placing your order with us to confirm that this model will work with your service plan. Some service plan speeds may not be supported.

Frequently Asked Questions

Q1: What services can I use with the Cisco DPC3939 XB3 Cable Modem? A: The Cisco DPC3939 XB3 Cable Modem is specifically designed for Xfinity’s high-speed Internet and voice services.

Q2: Can this modem handle high-speed Internet activities like gaming and streaming? A: Yes, the modem supports up to 16 downstream and 4 upstream channels, providing higher Internet speeds for data-intensive activities like gaming and streaming.

Q3: What is the wireless capability of this modem? A: The Cisco DPC3939 XB3 Cable Modem comes with dual-band wireless capabilities. Users can choose between 2.4GHz and 5GHz for faster wireless speeds and reduced interference.

Q4: Does the Cisco DPC3939 support VoIP? A: Yes, the Cisco DPC3939 modem supports Voice Over IP (VoIP) services with two telephone ports.

Q5: Is this modem compatible with IPv6? A: Yes, the Cisco DPC3939 modem is compatible with IPv6, the next-generation Internet protocol.

Q6: Is the Cisco DPC3939 XB3 Cable Modem compatible with other Internet service providers? A: This modem is specifically designed for use with Xfinity’s high-speed Internet and voice services, so it may not be compatible with other Internet service providers.

Q7: How do I set up my Cisco DPC3939 XB3 Cable Modem? A: For setting up your modem, refer to the user manual provided in the package. You can also contact Xfinity’s customer service for assistance.

Q8: What should I do if my Cisco DPC3939 XB3 Cable Modem is not working properly? A: If your modem is not working properly, try rebooting it first. If the problem persists, contact Xfinity’s customer service for further assistance.

Q9: Does the Cisco DPC3939 XB3 Cable Modem have a warranty? A: For warranty information, please refer to the product details or contact the seller.

Q10: Can I use my own router with the Cisco DPC3939 XB3 Cable Modem? A: Yes, the modem can be used in bridge mode which allows you to connect your own router. However, this might disable some of its features such as the in-built wireless network.