Can you post your router stats? See here for details: http://www.kitz.co.uk/adsl/frogstats.php
'BET' may be an option if you are getting below 2Mbps. It basically bonds two lines together to double your speed however it can be expensive. In Northern Ireland, they're giving BET free for the same price as ordinary ADSL broadband under a scheme under the Northern Ireland assembly to small businesses.
If you post your router stats and what speed you get from http://speedtest.net
using a local server we'll be able to see better how you can improve your speed.
Also - are you near a cabinet which is FTTC enabled? If you are 5.5km from the exchange and there is a cabinet 0.5 miles away then you'd be able to get a lot higher speeds with fibre to the cabinet technology.
For information on this, click the link here > http://www.dslchecker.bt.com/adsl/adslchecker.welcome
and post the results here... block out your phone number at the top of the page.
EDIT: Sorry - just seen your 1.5Mbps speed. Can you still post router stats?
Edited by jdowning640 (Tue 03-May-11 19:57:37)