OK, here's the deal with ADSL.
Pretty much all DSL (Digital Subscriber Line) is ADSL (Asynchronous DSL). All that means is that your download speed is faster than your upload speed. There are two main parts to your DSL connection, the telco side which is all the way from the main facility where your internet comes from to the box on the side of your house where the telephone line comes in to the house and, from the afore mentioned box into your house to all of your telephones, satellite receiver, and your modem. What you need to determine is what side your problem is on. The first step is to call your ISP and tell them you are having a problem. They need to come out and determine if the problem is on their side or your side. Basically, that means up to the box is their problem and past the box into your house is your problem (monetarily that is). The ISP or TELCO is usually responsible for fixing their end and you are usually responsible for fixing any problems with the wiring in your home. What is your connection supposed to be ? I have had DSL for a long time and prefer it over cable any day as cable is a shared type network and, DSL is a dedicated connection with a fairly fixed rate of speed with no neighbors eating up your bandwidth with p2p prOn 24/7. If the problem is on your side, it's time to call a telephone repair service to come out and test the telephone lines in your house and hopefully find whats wrong, fix it, and not charge you an arm, a leg, and a keg. Hope this helps.