You need to reset the router in order to get into it's settings. I don't recommend resetting it since you're on DSL.
You WILL want to get somebody to get the password for you, because if you reset it it will likely cut off your internet and you might need to call the ISP to fix it.
You WILL want to get somebody to get the password for you, because if you reset it it will likely cut off your internet and you might need to call the ISP to fix it.