mg8725 | 2.5+Gbps DOCSIS 3.1 Cable Modem + WiFi 6 Router

General

Cable Modem

• DOCSIS 3.1 plus 32x8 DOCSIS 3.0
• Supports multi-gigabit speed tiers*
• F-type female 75 Ω standard coaxial connector

WiFi Technology

• 802.11ax/ac/n/g/b/a, 4x4 MIMO 
  (Multiple Input Multiple Output)

Wireless Standards

• IEEE 802.11ac, n, g, b, and a

WiFi Speed and Performance

• Simultaneous Dual Band radios
• Up to 1200 Mbps* at 2.4 GHz
• Up to 4800 Mbps* at 5 GHz
• Anybeam at 2.4 GHz and 5 GHz for implicit beamforming with any WiFi-compatible device
• Four (4) SSIDs (2 per radio)

Antennas

• Four (4) internal dual-band antennas
• Power Boost wireless amplifiers
• Transmit power:
  2.4 GHz: Up to 30dBm
  5 GHz: Up to 28dBm

Ethernet Interfaces

• One (1) 2.5 GigE LAN port, with Auto-MDI/MDIX
• Three (3) GigE LAN ports, with Auto-MDI/MDIX

LEDs

• Front Panel:
  Power, Downstream, Upstream, Online, WiFi, WPS
• Rear Panel:
  Each Ethernet port has two LEDs indicating data flow and LAN connection speed.
  For GigE Ethernet ports, green indicates 1 Gbps; amber indicates 10 or 100 Mbps.
  For 2.5 GigE Ethernet port, green indicates 2.5 Gbps; amber indicates 100, or 1000 Mbps.
  For all Ethernet ports, blinking indicates data flow.

Router Mode

• Dynamic DNS
• DHCP Server and Client
• NAT
• Bridging
• Port Forwarding/DMZ support
• Support for up to 253 client devices

Networking and Security Features

• Stateful Packet Inspection (SPI)
• VPN passthrough: PPTP, IPsec tunneling
• Attack Protection
• IP/MAC/Port filtering
• Denial of Service Notification
• Supports Baseline Encryption (BPI) Management
• Wireless Functions: WMM/WME, guest network
• Wireless Security: WPA-PSK/WPA2-PSK, WPA/WPA2, TKIP/AES, WPS, 802.1x 

Authentication

• Password protected system management
• Cable modem diagnostic log

Size

• 8.8” H x 5.7” W x 3.5” D
  (224 mm x 145 mm x 89 mm)

Weight

• 32 ounces (907 grams)

Power Adapter

• DoE-compliant Level VI energy-saving, UL-listed power adapter with 12 Volt DC, 3 Amp output and 100-240VAC universal input
• NEMA 1-15 (North American style) 2-prong plug is provided in the US.

Operating Temperature

• 32° to 104° F (0° to 40° C)

Certifications

• FCC 15B, 15C and 15E, FCC MPE, Bureau Veritas 60950-1 ITE safety, CableLabs®, cable service providers
• Click here for additional regulatory compliance information

Surge Protection

• Ruggedized cable and power lightning protection

Warranty

• Two years

OPERATING PARAMETERS

DOCSIS Standards

• DOCSIS 3.1, 3.0, 2.0, 1.1

Downstream

• Data Rate:
  Up to 3,780 Mbps†
• Bonded Channels:
  Up to 2 OFDM (DOCSIS 3.1) 
  or 32 SCQAM (DOCSIS 3.0)
• Frequency:
  88 to 1002 MHz
• Operating Level Range:
  -15 to +15 dBmV

Upstream

• Data Rate:
  Up to 800 Mbps†
• Bonded Channels:
  Up to 2 OFDM (DOCSIS 3.1)or 32 SCQAM (DOCSIS 3.0)
• Frequency:
  5 to 85 MHz
• Configurable Diplex Filter:
  +65 dBmV (64 QAM, single channel)
  +57 dBmV (64QAM, 4-8 channels)
  +65 dBmV (16 QAM, single channel)
  +65 dBmV (OFDMA)

Network Protocols

• IPv4, IPv6, TCP, UDP, ARP, ICMP, DHCP, FTP, TFTP, SNMP, HTTP, HTTPS

Application Protocol

• SNMP v1/v2/v3

DHCP Client

• Automatically retrieves IP and DNS server address from DHCP server through WAN connection

ToD (RF868)

• ToD support for local and MSO time synchronization

Managment

• Web-based management interface utility

System Requirements

• Cable Internet service, AC power, PC (Windows, Mac, or Linux) or Smart device (iOS or Android) with web browser
• Directly connected devices, such as computers, HDTVs, and game stations, must have an Ethernet port.
• Devices connected wirelessly must have wireless ax, ac, n, a, g, or b capability.

Package Contents

• MG8725 modem router** 
  (does not include phone jacks or phone capability)
• motosync app
• Power adapter
• Ethernet cable & tie
• Quick Start Guide

* The actual speed of a connected device depends on the speed of your Internet service and the speed of the WiFi or Ethernet link to that device. Comcast has tested this modem for actual Internet speeds up to 1000 Mbps.

** This cable modem/router does not have telephone jacks for support of voice phone calls.

†Speeds shown are maximum DOCSIS connection speeds of the device. Actual speeds depend on provisioned speed tier from the provider, and will typically be lower.

No, this modem only supports coax based cable interenet.  Coax cable is the same cable that plugs into the antenna port of a tv.

Depends on your internet provider.  Xfinity uses an app for setup while most other providers use a dedicated web page in your account. If all else fails, all providers can add your modem over the phone.