High Speed DSL - Basic Installation
Before you begin a DSL installation, there must be an Ethernet card installed on the computer(s) and there must be a phone line that has been DSL enabled. DSL will only work on a single (POTS) telephone line.
Basic DSL Installation:
  1. Insure the correct phone line is being used for DSL. You can check this by plugging in an analog phone and dialing 3-1-1.
  2. Phone line into the DSL modem should NOT be filtered. The same phone line used for fax and telephones must have an inline filter installed.
  3. Phone line must be plugged into the DSL modem, and the modem must be powered on in order for troubleshooting to take place.
  4. DSL enabled phone line used for alarm systems must have a POTS splitter installed to filter the line to the alarm.
  5. Inline filters will work in 95% of all installations. POTS splitters are used only in special circumstances, including problem phone lines.
  6. Check on the back of the DSL modem that the PIN switches are set correctly (off-on-on-off). If you have had to make changes, then you must power cycle the modem (turn off and turn on) to reset the configurations.
  7. An Ethernet cable must be plugged into the back of the DSL modem, and connected to the back of the computer's Ethernet NIC (network interface) card. The LAN light on the DSL modem will be green if there is a successful connection. If not then you must insure the crossover switch is pushed in on the back of the modem. Check for defective Ethernet cable and defective or misconfigured network interface cards (NIC).
  8. Configure the network adapter correctly to DSL configurations as provided. Re-boot computer if necessary and test the DSL for connectivity to the Internet.
  9. Powering DSL off and then on, will reset the modem configurations. Modem will take from 15 secs to 35 seconds to reboot.
  10. Modem is trained when Power light is green, and ADSL light is green (flickers for data traffic). LAN (ethernet cable) connection is working when light is green (flickers for data traffic).


Advanced Troubleshooting Tips:
  1. No MAC address means that either the computer is not plugged into the DSL or is not turned on. (For Network Administrators only)
  2. To check for Internet connectivity, you can use a MS-DOS prompt or a Command line to ping or to do a traceroute to the DSL gateway (as assigned), and to the DNS servers (ie. 198.161.96.1)

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