Your broadband internet connection needs a piece of hardware which is usually provided by your internet service provider and generally called a router or ADSL modem. If this fails you will lose your internet connection. You will have the inconvenience of getting another and the disaster of configuring it. You will remember in the welcome pack you were provided with the phone number for technical support and a username and password which are required to allow access to your internet connection.
Step away from the computer! Find these vital pieces of information NOW. Otherwise you will have all the grief in the world as you try and persuade a busy,expensive and cynical helpdesk to release your password.
Another blood pressure reducing hint from JustEnoughTechnology