Arris SURFboard T25 User manual

QUICK START GUIDE
Cable Modem with
Xfinity Voice
T25

2
What’s in the Box
12vDC 2.5A
Power Adapter
Ethernet Cable
Soware License
& Warranty Card
Support
Information
Card
Quick Start Guide
T25
T25 Cable Modem
with Xfinity Voice

3
Introduction
Status Indicators
Let’s Get Started
Cable Modem Web Manager
4
7
14
1
3
2

4
1
Status Indicators

5
Telephone service for lines 1
& 2 are connected.
Voice cable modem is
connected to the network
Upstream (Send data) and
Downstream (Receive data)
channels are connected
Power is properly connected
to the voice cable modem
On
On
On
Flash
Note: Detailed LED status information is available
online in the SURFboard T25 User Guide at the ARRIS
Support website, www.arris.com/selelp.
Front Panel LEDs
Power
US/DS
Online
Tel1 &
Tel2

6
The SURFboardT25 is a combination DOCSIS 3.0
telephony cable modem with twoVoice-over-IP (VoIP)
telephone lines. It uses DOCSIS 3.0 technology to
provide ultra high-speed Internet access on your home
or small business network.
For whole home connectivity, use theT25 Ethernet
port to add a Wi-Fi router (separate purchase).
Using the connection capabilities of theT25, you can
connect your computer and other network-enabled
devices via the two Ethernet ports.TheT25 connects
to the existing coaxial coaxial cable connection in your
home.
Note: For Internet connections, you need a cable
service connection with a cable Internet Service
Provider. TheT25 will not work with DSL or satellite
Internet service.

7
Let’s Get Started
2

8
Connect the coaxial cable (not included) from the
cable wall outlet or RF splier to the Cable connector
on the rear of your cable modem.
A
Tighten the cable
connector by hand.

9
Connect the Ethernet cable to Ethernet port 1 on the
rear of your cable modem and the Ethernet port on
your PC or laptop.
B
Ethernet port 2 is
bridged to Ethernet
port 1. Your Internet
service provider
may require a
subscription to a
second IP address
to support using
both Ethernet ports.

10
Connect the power adapter to the Power port on
the rear of your cable modem, then plug it into an
electrical wall outlet that is not controlled by a wall
switch.
C
Your cable modem will
automatically power
ON when the power
adapter is connected.

11
Check the front panel LEDs on your cablemodem.
Aer a brief pause, the first three LEDs should light
up SOLID white.
D
Power
US/DS (Upstream/Downstream)
Online
Telephone Line 1
Telephone Line 2

12
Make sure you have the cable modem model name
(T25), HFC MAC ID, and Serial Number (S/N) listed on
the modem label located on the boom of your cable
modem or aached in the Cable Modem Label section
at the end of this document.
Note: For Comcast subscribers, please visit
xfinity.com/activate before calling Comcast or
ARRIS. If there is an issue with the activation, please
call Comcast: 1-800-Xfinity (1-800-934-6489).
Make sure you have your Comcast XFINITY account
number, account phone number, and login information
(your email address or user name and password).

13
E
Open a web browser using your mobile device and
visit xfinity.com/activate to activate your Xfinity
service.
Activate your Xfinity service using either your
mobile phone number or your Xfinity user name and
password.

14

15

16
E
Verify T25 connectivity by accessing the Internet on
your connected PC or laptop.
Visit any public webpage such as www.suroard.com.
If the website fails to open, please contact your service
provider to set up your Internet service or activate your
cable modem.

17
3
Cable Modem Web
Manager

18
A
Monitor the T25 operational status using theT25
Web Manager.
Open a web browser (e.g., Internet Explorer, Google
Chrome, etc.) on your connected computer or laptop.
Type the default LAN IP address, 192.168.100.1 in
the Address bar and press Enter.

19
B
For additional assistance with yourT25, ARRIS is
available to help. Choose one of the following:
• Visit www.arris.com/selelp for Self Help, FAQs,
Product Manuals, Live Chat, and Email support.
• Call us at 1-877-466-8646.
• For information on additional SURFboard products,
including www.suroard.com.

20
Cable Modem Label
If the cable modem label is
not aached, please check
the boom of your T25.
ARSVD01774-a
© 2018 ARRIS Enterprises, LLC. All rights reserved.
No part of this publication may be reproduced or transmied in any form or by any means
without wrien permission from ARRIS Enterprises, LLC.
ARRIS, SURFboard, and the ARRIS logo are all trademarks or registered trademarks of ARRIS
Enterprises, LLC. Other trademarks and trade names may be used in this document to refer
to either the entities claiming the marks or the names of their products. ARRIS disclaims
proprietary interest in the marks and names of others.