Speedstream 4100 PPPoE

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The Efficient Networks Speedstream 4100a, 4100b, and 5100b are typically configured as NAT routers with PPPoE enabled. It is necessary to disable PPPoE for these devices to work properly with Sonic.net Fusion and ADSL1 connections.

  1. Surf to in your web browser of choice (Note: Safari 3 will not work with this interface). If your system has assigned itself a 169.x.x.x address, you will first need to manually assign your computer an IP address like, a subnet mask of, and a default gateway of to do so.
  2. You will be presented with a web interface. It will be asking you for your ISP login name and password. Ignore this, and click the blue “Advanced” button on the left.
  3. Several options will appear as grey buttons. Click the one labeled “PPP Location” to continue.
  4. You should be challenged for a Modem Access Code. This should be located on a sticker on the bottom of the modem itself. Type it in, and click Continue.
  5. Mark the radio button labeled “Bridged Mode (PPPoE is not used).” Scroll to the bottom of the page and click “Save Changes.”
  6. The change to the settings has been saved, but not implemented. You will be prompted to restart. Click the “Restart” button that is presented to you (this is in the web browser, not the the modem itself).
  7. You will be presented with a countdown page. We have found that it will not actually go away when your modem is ready to go again. When your DSL light goes solid green, you should be able to surf. Forcing your computer to renew its DHCP lease may be a good idea if you can’t get back online right after the light goes solid.
  8. If you previously had to manually set your IP address, you’ll want to switch it back to DHCP.

The above instructions apply to the Speedstream 4100 and 5100b only. 5100a modems have no PPPoE capability.