There are a few things you can do to replace your AT&T DSL modem if it’s gone bad.

  1. Check the warranty. If your modem is covered by a warranty, you can usually get it replaced for free or at a reduced price.
  2. Check the internet connection. Make sure that your internet connection is working properly and that there’s no issue with your DSL modem.
  3. Try resetting the modem and router if they’re not working properly either. Resetting them can fix some issues that may be causing your DSL modem to not work correctly.