AT&T High Speed Internet Service Self-Installation Guide for Modem

A self-installation guide for setting up AT&T High Speed Internet Service using a compatible DSL modem, including connection steps, filter installation, and…


AT&T High Speed Internet Service Self-Installation Guide for Modem - cover page
Brand
AT&T
Category
Other Electronics
Document type
User Manual
Language
English
Pages
2
File format
PDF
File size
3.1 MB
Published
13 October, 2026
Updated
13 October, 2026
MD5 checksum
8A902C75CF96226A3D41466AB010502E

About this manual

This document provides instructions for customers to self-install AT&T High Speed Internet Service using their own compatible DSL modem. It covers gathering necessary materials, connecting cables (Ethernet, Power, and Data), and installing filters if voice service is required. The guide notes that cable and dial-up modems are not compatible with this service.

What's inside

  • Specific Issues
  • Get Started
  • Gather Materials
  • Required Equipment
  • Having Trouble
  • Power Up
  • Connect the Cables
  • Install Single-Port Filters
  • Set Up
  • Check Modem Settings

Frequently asked questions

What if I have a monitored security system or health alarm?

When you have completed the installation, please contact your alarm monitoring provider to test your alarm.

Why do I need to install filters?

Filters are only required for customers with voice service on their DSL line to eliminate pitched tone or static noise.

How can I get rid of the Detecting Proxy Settings Internet browser notice?

Run the Internet Connection Wizard in Internet Options and do not select anything when prompted to enter proxy settings.

What if my previous AT&T service is suspended?

Call Customer Service at 1.877.722.3755 or 1.888.321.2375 to reactivate your account.

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