USR8550 USRobotics Ethernet ADSL Modem

  • Attention: Take note of your password.
  • How to verify the initialization of the DSL connection.
  • Esablishing connectivity to your ISP.

    Additional Support

    If the support information in this section doesn't help you solve your issue, you can contact a USR Help Desk Technician directly.

    Manuals and other Documents

    OS Compatibility




    2012 R2







    Vista 64


    XP 64




    98 SE

    98 FE





    Drivers and Firmware
    Windows 98, Me, and 2000 driver update
    Note: In order to prevent your browser from trying to open these files, right-click on the file and select Save Target As... to download.

    1. Configure the TCP/IP Settings of your Network Interface Card (NIC) to use a Static IP address of and as the subnet mask.

      Note:  Your modem is defaulted to an IP Address of If the modem is not set to an IP address with the 192.168.1.xx subnet or a valid route does not exist between the modem and your computer, the download will fail to complete. To confirm that your modem is set to, refer to the USR8550 User Guide for further instructions on configuring the modem.

    2. Connect a straight through Ethernet cable (RJ-45) from the modemís Ethernet port to the computer's NIC Ethernet port.
    3. Click and download the file to a temporary location on your computer's hard disk drive and unzip it.
    4. Double-click TftpUtil.exe.
    5. Type 12345 in the Password field. If you or your ISP have changed the modemís password, use that password instead of 12345.
    6. Type in the IP Address field.
    7. Select Image/Pack File.
    8. Point the Image/Pack File to the directory where you extracted the zip files on your computer's hard disk drive. Select T60M10411_13_R3.1.0.pack.
    9. Click Download.
    10. You will be prompted to restart your modem. Once your modem has restarted, your firmware upgrade is complete.
    Note: In addition to the T60M10411_13_R3.1.0.pack file, the zip file below includes T60M10411_13_R3.1.0_full.pack, used for upgrading your modem (this will replace current settings with default settings) and T60M10411_13_R3.1.0.bin (used with HyperTerminal for recovering from a crashed flash image; refer to the Recovering from a Crashed Flash Image under the Configuration Guide section of the User Guide located at the top of this page). To use either file, simply follow the instructions above with the corresponding file(s).
    T60M10411_13_R3.1.0_USR.zip2.41 MB 11-14-02
    8550-Release-Notes.doc524 KB 08-28-02

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    Electronic product documentation is provided as a courtesy to USRobotics customers. These are electronic versions of the original documentation. Some of the information contained within this documentation, including the support contact information, is subject to change.