Table of contents
Chapter 1: Getting started...................................................................... 10
About your T25.............................................................................................................10
In your box................................................................................................................... 10
Additional item(s) needed (not included)..........................................................11
System requirements....................................................................................................11
Contact information..................................................................................................... 12
Chapter 2: Product overview.................................................................. 13
Front panel................................................................................................................... 13
Indicator lights for the T25................................................................................ 14
Rear panel.....................................................................................................................15
Backup power.....................................................................................................17
Telephony cable modem label..................................................................................... 17
Chapter 3: Installing your T25.................................................................18
Install the T25...............................................................................................................18
Connect your telephone.................................................................................... 19
Establish an Internet connection..................................................................................19
Chapter 4: Using the cable modem Web Manager.................................. 22
Web Manager menu links............................................................................................ 22
Change the default password...................................................................................... 22
View the T25 network connection status.................................................................... 22
Status screen...................................................................................................... 23
Event Log screen................................................................................................ 26
HW/FW Versions screen.................................................................................... 26
Registration Status (CM State)...........................................................................27
Chapter 5: Managing your telephony cable modem and connected
networks............................................................................................. 28
Reboot and reset the T25............................................................................................ 28
Reboot (or restart) your T25 using the Reset button........................................ 28
Reset the T25 configuration using the Reset button......................................... 29
Exit the T25 Web Manager.......................................................................................... 29
Chapter 6: Troubleshooting tips..............................................................30
Solutions....................................................................................................................... 30
Front panel LED icons and error conditions.................................................................31
SURFboard
®
T25 Cable Modem with Xfinity Voice User Guide STANDARD Revision x.5 8
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