It's not just synch speeds either. 9 ms average ping to BBC, previously it was over 20ms. The change in my connection is really eye-opening.

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C:\>ping -n 10 bbc.co.uk  Pinging bbc.co.uk [212.58.246.104] with 32 bytes of data: Reply from 212.58.246.104: bytes=32 time=10ms TTL=57Reply from 212.58.246.104: bytes=32 time=9ms TTL=57 Reply from 212.58.246.104: bytes=32 time=10ms TTL=57Reply from 212.58.246.104: bytes=32 time=10ms TTL=57 Reply from 212.58.246.104: bytes=32 time=10ms TTL=57Reply from 212.58.246.104: bytes=32 time=9ms TTL=57 Reply from 212.58.246.104: bytes=32 time=10ms TTL=57Reply from 212.58.246.104: bytes=32 time=10ms TTL=57 Reply from 212.58.246.104: bytes=32 time=10ms TTL=57Reply from 212.58.246.104: bytes=32 time=10ms TTL=57  Ping statistics for 212.58.246.104:     Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:     Minimum = 9ms, Maximum = 10ms, Average = 9ms

Yep as DLM has deemed the line more stable it can also reduce the interleaving depth which gives lower pings. A higher interleaving depth gives higher pings but prevents the line dropping as much and prevents error build up... So your lines probably quite good.

It's why it's hard to compare one persons sky with anothers, as the differences are likely due to one line being better than the other.

In reply to a post by ukhardy07:

Yep as DLM has deemed the line more stable it can also reduce the interleaving depth which gives lower pings. A higher interleaving depth gives higher pings but prevents the line dropping as much and prevents error build up... So your lines probably quite good.

I think it's more than just an individual random line test on my part, and much improved line conditions for my individual line. Judging by the number of reports, it looks like Sky are much more aggressively pushing out faster line profiles with low noise margins and low interleaving depths than they ever were before. They've also reconfigured the upstream limits which were always set artificially low before now.

I expect the new profiles is being rolled out by exchange.

Edited by Oliver341 (Sun 15-Jun-14 23:05:25)

Are these type of line tweaks limited to their Braodcom kit or does it work with their Easynet kits too?

Good question.

We're not even sure as to where these changes have came from yet!

Well I contacted Sky via live chat and it seems it must work on both kits. I am now on the 3db profile but the Easynet kit I think still adds 1.5db to the upload by default as that is on 4.5db. Anyway good improvement, almost on the old speeds I had when I was on Be There.

Now I wonder if the option to change via live chat is only available to Sky Broadband Pro customers?

I'm not a Pro customer and the change just happened.

Perhaps but my experience of DLM is as follows.

Initial DLM puts you on a speed that's extremely stable but conservative. On some lines this can be a 3db noise margin but rarely... After a few months of stability it reruns and this time is far less conservative as it has a history of the line not dropping.

Perhaps the people moving from be and o2 have just been connected long enough so that now DLM is rerunning and giving better speeds. As Sky switched people over in bulks this would mean these people are all getting this occur at a similar time... This has virtually always been the case in my experience with DLM. I doubt they have suddenly changed it, could be wrong though.

I got around 13Mbps first time, a few months later I got 15Mbps. I'm on fibre now so hard to tell if things have changed. Most people eventually end up on good speeds with Sky if the lines stable. They are just slow and conservative to roll out those speeds, going for stability and users lines have to be stable to see those improvements. DLM in some respects is always there, monitoring for changes.

Edited by ukhardy07 (Mon 16-Jun-14 18:12:38)

In reply to a post by ukhardy07:

Perhaps the people moving from be and o2 have just been connected long enough so that now DLM is rerunning and giving better speeds.

How does that explain Oliver's sudden change?

Ahhh I had assumed probably wrongly that he came from be too. Well it would be about time Sky gave better speeds it would make a fair few people happier.