I have a 7100 installation and I continue to get the error message "Cause of reset: Software Watchdog" I have replaced the 7100 twice. When I replace the unit I initialize the new unit (flash reset - per Adtran configuration guide). I then copy down the Cflash files to new Cflash and copy all of the flash files to new flash -basically I copy of the existing files to the new 7100. Failure rate is in the range of a few minutes to a number of hours or days. I have tried R11.5.0, up through R11.10.7HA same results. Could a configuration issue cause this type of problem?