found out last week a neighbour managed to recover a ton of sync speed by swapping pairs on the pair crosstalk lottery, however he had a hard time getting the engineer to do it. It also took 3 pair swaps.

His sync started out at about 75mbit, and up until he got the engineer was down to 58mbit. He said the first 2 swaps were both improvements but only low 60s and the 3rd swap has given him the full 80mbit. However since he had the swap my line is down to 68mbit attainable so I have lost some more. I dont know what his attainable is. Engineer refused to answer questions about ali, joints etc. Probably arsy he couldnt just sign the job off without doing some proper work.

I guess if we consider BT only originally planned a 40/10 rollout, its easy to see why vectoring wasnt bothered with as on a 40/10 service even with the crosstalk chaos most lines would handle it.

Edited by Chrysalis (Mon 18-Mar-13 08:44:20)

That's interesting. So did your neighbour phone up and get an engineer booking?

I need to ask him, he is on infinity like me, so am curious myself.

I only knew he had it as he had a openreach van outside and I noticed it out my window.

I asked if it was an install he said no, he was getting his sync fixed and then I found out about the pair swaps etc. after the engineer had gone.

Thanks - I got the full 80/20 for 10 days LOL then I got bumped down to 60/20. However, my BT checker says 55/15.
Since I bought a HG612 I've manually rebooted the modem when I had a better attainable, so for 1 week I've been on 67/20 (IP profile 64.5/20). Its currently at 5.7 SNR so attainable has dropped to 65/22.
I'm pretty certain that my speed drop is due to being dumped on a lower quality pair..

I did suspect a pair swap myself at first but my downtime was too low for that. I believe its down to new installations and severe crosstalk.

My 110/36 (assuming if was the same prior to unlocking modem) lasted just 2 weeks. Then the 90/36 after only lasted a week, so basically I only had 80/20 for 3 weeks, when I originally had a huge 30mbit buffer.

However I do know openreach have been disconnecting lines in the cabinet, and I have to wonder why they doing that if they not swapping pairs, occasionally my attainable shoots up to 85-90 range (upstream does also) and the 2 times I went to the cabinet there was a engineer there fiddling with pairs, and one of them openly told me he had a line disconnected at that time.

I asked Plusnet if they can get my pairs swapped last year, and the answer was no, they said OR would not do it unless there was a fault.

Of course this depends on whats classed as a fault, but we all know what OR are like there.

OR will do it after all other fault finding has been done and the fault remains. Why would you need it doing if you don't have a fault?

Because in my opinion having a sync speed of around 40Mbps on 450 meter line is a fault, sometimes it fluctuates higher when it manages to use the D3 band, then I get about 45Mbps. But in OR opinion this is not a fault.

I was the first on the cabinet, and my line has always been a bit unstable, as in it fluctuates up down a lot. My neighbour when I spoke to him about it was getting 55Mbps speed tests, which means his sync is probably about 60Mbps, which is more inline with what others at similar distances see.

Ok I got the story now.

He reported disconnections on his service.

BT seen the disconnections in their logs, and allowed an engineer out. However the disconnections he did himself deliberatly to pretend the fault.

The engineer spent an hour checking equipment and was about to leave stating no fault on the service.

My neighbour was angry saying to the engineer he didnt consider checking of his equipment as if he is a toddler as a fault investigation. Engineer apparently said tough luck and left.

However the engineer accidently left behind his tool. My neighbour refused to let him back in to get it saying tough luck.

At that point the engineer agreed to check the cabinet and swap the pair.

It seems my neighbour was lucky and brave to try that on, as I guess the police could have been called, or the engineer could have still simply drove off leaving it behind. In the end he was there for over 2 hours on a fault callout.

In reply to a post by BatBoy:

OR will do it after all other fault finding has been done and the fault remains. Why would you need it doing if you don't have a fault?

consider that OR raise a charge if no fault found.

If they tried that on with me I would refuse payment unless a no fault is proven, not finding a fault after only checking inside the customers property is not proving there is no fault.

Obviously you may say I am talking out my backside as I havent tried this on with OR, but I am now going to be reporting a few things, and if an engineer is sent out as a matter of procedure I expect BT's side to be checked.