In reply to a post by WWWombat:

I have had fibre on two lines:

Line 1 (650 metres):
----
8C Profile, mid 2011:
Original estimates: 30.1 Down, 6.1 Up.
Actual: 36 Down, 10 Up.
----
17A Profile, from Nov 2011:
Current estimates: 30.1 Down, 11.3 Up.
Actual: 40 Down, 10 Up
Modem's "Max Attainable": 65 Down, 15 Up.
----

New estimate: 40 Down, 10.9 up (Note this upstream estimate went down!)

Line 2 (450 metres):
----
17A Profile:
Current estimates: 29.2 Down, 11.9 Up.
Actual: 40 Down, 10 Up.
JDSU "Max Attainable": 85 Down, 25 Up.
Modem's "Max Attainable": 90 Down, 25 Up.
----

New estimate: 40 Down, 18 up (and this upstream estimate went up).

Where do you get the Openreach estimates?

You need to work for an ISP mate.

Taken 28/01/2012 @ 23:40

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 22.6Mbps and upstream line speed of 5.4Mbps.

I was not expecting much to change. I've had IP profile of 26520 (attainable = 26976) DOWN and 2000 (attainable = 6294) UP, so the checker does seem to be getting closer.

Why isn't the checker showing speeds above 40mbps for those lines that are capable of achieving above 40-80mbps speeds?

Looks like they capped the down stream but not the upstream

In reply to a post by Bobby_Valentino:

Why isn't the checker showing speeds above 40mbps for those lines that are capable of achieving above 40-80mbps speeds?

See my previous post.

mine was showing downstream of 22.5, the other day actual was 27mb until the 27th jan when it shot up to 37mb, now the checker shows

Our test also indicates that your line currently supports a fibre
technology with an estimated WBC FTTC Broadband where consumers have
received downstream line speed of 29.5Mbps and upstream line speed of
5.8Mbps.

if you go to link below and type in you phone number

http://www.dslchecker.bt.com/pls/adsl/ADSLChecker.Te...

This was mine before the update:

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 29.9Mbps and upstream line speed of 12.1Mbps.

.....and now:

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 40Mbps and upstream line speed of 20Mbps