Resetting DSL Router Password

More information about Real Time's products & services is available on our sales web site. Direct links for each item are listed below:

If you've setup your own passwords for the Cisco 675/678 and forgotten them, this procedure will help you reset them. CAUTION: This will also erase your router configuration!

  1. Connect your 675/678 to your PC via the management cable (originally supplied with the router - connects between the Cisco 675/678 and your PCs serial port)
  2. Login to the router (using Hyperterminal or other serial port based terminal application)
    Note: connect using 9600 baud, 8-N-1, no flow control
  3. Remove, then restore power to the Cisco 675/678
  4. As soon as the Cisco 675/678's red ALARM light comes on, hit Ctrl-C a few times to enter ROM monitor mode
  5. Enter the following two commands:
    1. CBOS# es 6 (erases sector 6)
    2. CBOS# rb (reboots 675/678)
  6. Once the unit reboots (you may need to manually power cycle the router) you can reenter your user info

The instructions and screen shots contained within this website are specific to services offered by Real Time Enterprises only.

If you have any problems connecting to Real Time after carefully following these directions, please call (952) 943-8700 and we will be happy to help you.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

Real Time Enterprises, Inc.

Real Time Enterprises, Inc.
10181 Crosstown Circle
Eden Prairie, MN 55344

Phone: (952) 943-8700
Fax: (952) 943-8500

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