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v1.0, December 2008
Chapter 6
Troubleshooting
This chapter provides information about troubleshooting your ADSL2+ Modem Router
DM111PSPv2. After each problem description, instructions are provided to help you diagnose and
solve the problem. For the common problems listed, go to the section indicated.
• Is the modem router on?
Go to “Basic Functioning” on page 6-2”
• Have I connected the modem router correctly?
Go to “Basic Functioning” on page 6-2”
• I cannot access the modem router’s configuration with my browser.
Go to “Cannot Log in to the Modem Router” on page 6-4.
• The configuration changes are not saved.
Go to “Modem Router Does Not Save Configuration Changes” on page 6-6.
• I’ve configured the modem router but I can’t access the Internet.
Go to “Troubleshooting the Internet Connection” on page 6-6.
• I can’t remember the modem router’s management utility password.
Go to “Restoring the Default Configuration and Password” on page 6-8.
• I want to clear the modem router configuration and start over again.
Go to “Restoring the Default Configuration and Password” on page 6-8.
• The date or time is not correct.
Go to “Problems with Date and Time” on page 6-8