I have the same problem - used router, need to recover password. I have held reset button for 45+ seconds and unplugged for 10 seconds. Any other suggestions?
Should I assume that the password had been changed to something other than default?
Try entering root as the username and motorola for the password.This "backdoor" worked for my SBG6580 when I got locked out at one point.--"The dog days are over... The dog days are done..."