So why does the offical BT openreach checker show that I will get 59.3 - I can understand that these are sometimes a little out; but getting just over 20 when the checker shows almost 60 is quite a large gap.

If you look at Range B you appear to have an impacted line.

Hi,

I did a quick google for impacted line; which brings up the following TB article, which talks about internal wiring as the issue, is this the only case for an impacted line?

http://www.thinkbroadband.com/news/6173-bt-wholesale...

Cheers

Jon

I never thought an impacted line would be due to internal wiring. How would BTWholesale know about that?

No Idea; it's just what the TB article says:

What do these changes mean and what is an impacted line? The clue is in the checker text which refers to a bridge tap and wiring issues. In laymans terms an impacted line is one where the VDSL2 service is running slower due to the presence of telephone extension wiring, or other things like non-twisted pair wiring in a home, or bad practice wiring (e.g. not using a coloured pair, but a wire from two different pairs). For the first four years of the FTTC roll-out these issues have largely been avoided, since the engineers arrive and install a filter faceplate and install a dedicated data extension if it was ordered. Once self-install becomes common we expect to see the same wiring issues cropping up that have regularly seen people with ADSL and ADSL2+ getting lower speeds than they should.

Because line testing can detect and report the effect of things like star wiring or bridge taps.

Bridge tap is like a T junction in the wiring, e.g. on an old house you might have a junction on the outside of the house and bits of cable running from it

Have you figured out how far you are from the cabinet?

Note that article (correctly) points out that an engineer install with the VDSL2 interstitial filter plate should normally avoid that issue.

Is the wiring at all odd in your house? In particular, is the master socket definitely the first "end point" of the incoming line, or is there a junction box somewhere feeding one or more extensions before it?

Hi,

The Master socket is in the living room; and i can follow the cable from the pole directly to the socket into the living room.

I had the socket installed about 6 years ago when i first moved into the property.

I am still trying to work out where the cab is that i am fed from.

Thanks

Jon

a 20Mb line is not much more impressive than the 7Mb i was getting on my traditional ADSL line.


It would be to many of us!!

Can I buy your house?