How did you measure your errors?
What tool / product did you use?
I am on aluminium and sppeds are getting worse by the day.
Infinity gives me nearly 3 times down and 7 times up speeds over my old ADSL2 but as you say, ali is not good at all for VDSL.
I had an engineer out to check everything when I upgraded to Infinity2 but he did report that there are sections of ali in the service between me and the cab.
It is a great shame that the wonders of Infinity2 double speeds may never be enjoyed by quite a lot of people.
how can i tell if i have aluminium sections in my line?
An engineer will need to check exchange records etc or indeed check all connections for your service back to the cab.
Unfortunately, due to the network topolgies that were originally used, they never envisaged high frequency data transmission over pstn many years ago so sections of cable can be in all sorts of combinations of copper and aluminium and take all sorts of circuitous routes to your home
the engineer could just say anything to shut you up
what you need is evidence
The engineer who checked my line spent nearly all day. He was very thorough. He put a signal tester on my line and checked everything back to the exchange and cabinet.
Having worked at BT years ago, I know there can be aluminium in services. Whereas it is a good conductor of electricity, it is not good for high frequency signals. Since voice transmission is not affected by it, it was a suitable replacement for copper. But with the advent of VDSL it is proving to be a problem. Something that BT will now have to acknowledge and also factor in in their marketing of superfast Infinity.