Having problems with dropouts on your ADSL service or your service
doesn't work at all? or at a very slow speed.?
Possible Causes may be: Back to base alarms are a common problem with ADSL services either they dont work at all or they can cause dropouts. Starwiring is also another area of concern which may cause the same problems as above (starwiring) is when all or some of your telephone extensions are joined in a non standard manner.
Telephone extensions also fall into this category as sometimes they can breakdown and are unable to support the ADSL service. Although you are still able to make phone calls it just won't support the ADSL from the same phone point, you can also use the ADSL service from other phone points in the premises adding to the confusion.