(E-Mail Removed) wrote:
>My line check test with BT says (now) that I should only be able to get
>512k in view of my distance from the exchange - so how come I was doing
>so well before?
If you are a long way from your exchange the ADSL signal can be more
susceptable to interference from electrical equipment in the
neighbourhood. We had a situation on our road in which the broadband
connections to several homes was wiped out by radio frequency emissions
from a common type of miniature power supply .
Although my broadband was operating ok throughout it speeded up
considerably when the fault was rectified.
A key thing to keep an eye on is the s/n ratio which can be found in
many modem/router advanced tables, and the higher it is the better.
Of course this sort of problem is not necessarily related to a line
fault and so it can take months to get diagnosed and then there may be
a problem of persuading a 3rd party to disconnect the offending
equipment.
AIUI ADSL has been rolled out on the basis that if it works that's fine
but if not that's tough and no-one can be held liable.
J