Entirely possible, would need his ISP to run a diagnostic check to see if its been banded.

In reply to a post by andylong42:

Or should I be getting 32Mb on my current package and I in fact need to investigate an issue?

A number of factors will be affecting the speeds you can currently achieve.

Not least is the distance from the fibre cabinet.
Do you have a rough idea what that distance is?

How often the connection re-syncs can also have a major effect on how DLM sets sync speeds, as can cumulative error counts, copper or aluminium cabling, time between errors, noise interference, crosstalk etc...........

I am situated "up to" 1000m from my cabinet, currently in sync at 29.6Mb & have occasionally synced at up to 35Mb & as low as 7Mb when my connection had major physical issues.

FWIW, My original estimate was 14.6Mb (original 8c profile) & I achieved a stable 35Mb sync speed for almost a full month.
Profile 17a was introduced in October 2011 on my connection & my estimate went up to 24Mb.
My estimate has been 30Mb for the last couple of months.

My ISP put me on the 80/20 trial just as an experiment to see if cabinet output power could be automatically increased for the higher frequencies that MIGHT have improved sync speeds.

This experiment proved just one thing:-
Sync speeds were not improved at all & I am now back on the 40Mb service, at my request.

HTH.

As IP Profile is 96.79% of sync speed for FTTC, a 25Mb sync speed should give an IP Profile of 24.2Mb (approx)

Thanks. I couldn't remember the percentage. Though I suppose 38717/40000 gives a clue . Knocks my 25Mbps sync idea on the head, but may still be worth the OP getting it checked.

Is this a simple thing to ask for, or would it be a typically life-shortening experience trying to explain to BT?

Also, does anyone else think the upgrade to Infinity 2 page is very misleading? It says "upgrade to higher speed for free" with a big button to press. What would be my legal standing if I did this and got no increase, but still had a new 18month contract?

If the speed was even just 0.1Mbps faster for upload or download, then they could say you got a higher speed.

All you stand to win is a waiver for the need for a new 18 month contract

In reply to a post by RobertoS:

Thanks. I couldn't remember the percentage. Though I suppose 38717/40000 gives a clue . Knocks my 25Mbps sync idea on the head, but may still be worth the OP getting it checked.

Doesn't mean it's not a banded profile though. The bands don't seem to fall on an exact full megabit number. After some cockups on my line, I'm on a banded profile and capped at 47855 down, 16993 up. Other times I've been capped at 60181/19000 and 61081/18999 (sic).

In reply to a post by qasdfdsaq:

Doesn't mean it's not a banded profile though. The bands don't seem to fall on an exact full megabit number. After some cockups on my line, I'm on a banded profile and capped at 47855 down, 16993 up. Other times I've been capped at 60181/19000 and 61081/18999 (sic).

Are those sync speeds or IP Profile speeds that you quote?

My connection has been banded on & off due to various issues over the months.
When banded, DLM has set the Downstream sync speed at values such as 24999, 27399, 24699, 32399, 14999, 7999, 12999 & so on.

Upstream sync speed has never been banded (apart from when I had a capped 2Mb Upstream service, when US sync speed was always 1999 k).


Working it backward, a sync speed of 24499 k would give an IP profile of approx 23713 k & a maximum throughput of approx 23001k (so maybe the OP is on a sync speed profile banded at 24499k)?

Edited by Bald_Eagle1 (Mon 30-Apr-12 22:39:14)

Sync speeds. My current IP profile is 46.32, on a downstream sync speed of 47855. I've definitely been banded on upstream as well, over the past few days my US sync rate has been 19000, 18000, 17000, and 16993, while normally it's 20000 with >31000 attainable.

I think I'm right in saying that if the OR DLM applies banding, it is quite likely to remove it automatically after a while?