My download speed has remained at 4.3Mbps whilst my IPP has moved from 4.5 to 5.0 to the current 5.5 Mpbs. Currently sync speed is 6.528, snrm 4.8. I am on an exchange only line 6km from the exchange with attenuation 47dB. My ISP (John Lewis but Plusnet technical support) says they are not capping the speed in any way. They are not interested in helping improve the actual download speed as the download speed is above the best value they 'predict' at 2.5 Mbps based on my line length. Any ideas on the cause of the low downlaod speed vs IPP and advice on how I can get the ISP to help? Cheers