fttc running slow

Hi folks,
Am posting here as vodafone tech level2 seem to be at a loss as what is causing the following issue;

Best results i can get using speedtest.net is 34.47 down and 18.16 up, (using an ethernet cable on a well spec'd pc)

Line stats are;

DSL Status
This page shows the technical parameters of your DSL connection.

DSL Connection
IP ADDRESS GOES HERE active
DSL Mode
VDSL G.993.5 (VDSL)
DSL status information
Line status Show Time
Link type Interleaved path
Bit rate
Downstream Upstream
Actual data rate 79912 (Kbps.) 19999 (Kbps.)
Operating data
Downstream Upstream
SNR Margin 7.9 dB 15.3 dB
Loop Attenuation 7.8 dB 8.2 dB
Error counter
Indicator name Downstream Upstream
FEC Corrections 1074 4648
CRC Error 292 0
Statistics
Transmitted Frames Received Frames
Frame Counter 17724659 37682202

Try the speed test here and post a link to the results graph
http://www.thinkbroadband.com/speedtest.html

http://www.thinkbroadband.com/speedtest/results.html...

Instant 10Mbps improvement

True, but i am paying for the 76mmeg package and vodafone are not allowing me to downgrade to the 38meg package, So i am reaching out to the knowledgeable community of here....

Have you tried wifi?

pretty much same speeds

In that case, are you sure wifi is disabled when testing over ethernet?

Link type >>> Interleaved path <<<

That alone could lose you 10+ Mbps

usb wifi adaptor removed during test