Yes, I have BT TV, you have me worried now, if I do manage an increase to 57Mb or above I think I will gamble on a reset and hope they roll out G.inp to ECI cabinets.
John

BT did announce that they'd found issues with both ECI cabinets and some modems (can't remember if the modems were ECI ones or not), and that fixes were being done.

The 3rd attempt at rolling G.INP out to ECI cabinets is due this Spring.

Thank you WWWombat for all the help and info very greatly and appreciated will see how it goes.
John

I'm pretty sure it was ECI modems because they only supported downstream G.INP.

In reply to a post by simon194:

I'm pretty sure it was ECI modems because they only supported downstream G.INP.

ECI cabinets only support downstream G.INP, so the modem only supporting downstream would not be a problem.

The problem was it wasn't working on the downstream, failing even to obtain a PPP session. That led to those lines requiring a DLM reset to remove G.INP just to get back online. I don't think the ECI modems were the only problem though

In reply to a post by SettleJohn:

Yes, I have BT TV, you have me worried now, if I do manage an increase to 57Mb or above I think I will gamble on a reset and hope they roll out G.inp to ECI cabinets.
John

As already said it's expected to return in the Spring. I was simply pointing out that observations show only BT TV customers (at the time of the failed rollout) kept G.INP, and if the lines reset then DLM no longer applies it back.

when they try again this spring hopefully they dont abort before my line even gets attempted at g.inp, last year I didnt see g.inp at all as they started rolling back before my line hit the top of the queue.

The problem is not helped by having CPs as the middle man, its showed time and time again that the message gets muddled between openreach and the end user, in addition the CPs priorities will be to keep their tech supports down.

So when there was some lines (a minority) not able to get PPP sessions, the CPs were probably pressuring openreach to revert the changes instead of push on with the rollout and fix the issues for those few lines as a seperate task, as they wouldnt have liked the increased load on their call centre's.

I suspect the problem devices were fritzboxes and asus modems. I dont remember seeing reports from people using openreach supplied modems and anything using a broadcom chipset.

I was using a Billion 8800NL when they did the ECI testing.

The problem I had was my line was stable on fastpath and then had G.Inp unnecessarily applied which cut my sync speed by 5 Mbps and then dropped another 2 Mbps when the level of G.Inp increased.

When it was finally abandoned there was another drop in sync when full interleaving was applied and stayed like that for a couple of months before DLM switched back to fastpath.

yes but you did not have the PPPoE issue which is what what caused the rollback.

On Hauwei some kind of gain seems enabled alongside g.inp allowing good sync speeds either matching or even in excess of fast path, whilst that possibly wasnt the cause on ECI.

Edited by Chrysalis (Fri 27-Jan-17 11:45:12)

Ooops...

In reply to a post by Zarjaz:

That's because a 100-pair cable is internally constructed in bundles of 25-pairs known as "binders

Except that it's not, the unit's, bunches or 'whippings' are in units of 10 on UK PET cable....

1st five pairs with a white A leg, blue, orange, green, brown, slate, then the next 5 with a red A leg .... and that's the bundle.

Doh.

There's probably a segment of my brain that intuitively knew that UK cables came in units of 10, a long,long time ago. I'll have seen plenty of descriptions of the colour patterns on larger cables back then, even if I didn't play with the cables myself.

Roll on a couple of decades, and all the crosstalk & vectoring stuff, of which I've read a lot in the last few years, talks about 25-pair binders. Somehow the old &new info never quite joined together.

It'll make the details for UK cables subtly different, I guess. 10x10 boxes on the heatmaps for starters.

Update
Openreach engineer tested my broadband line today but found no faults with the line he tested using a line tester and laptop the download speed recorded at 45Mb with a max of 45Mb achievable with 18 FES recorded, he fitted a new Mk3 filter to master socket.
One of the things I don�t understand is that with my Vigor 130 I record a downstream of 49Mb but OR tester only records 45 this is the speed I receive using the HG612 modem, are there different testers for ECI and Huawei cabinets as the Vigor is Lantic and HG612 has Broadcom chips he said the distance to the cabinet is around 250Mts that�s less than I had estimated.
He ran his tests at the cabinet, called the diagnostic center and told me that�s all the line is capable of. question is do I keep the fault open or just accept that�s the best I will acheive. BT customer service say my line should be a minimum of 57Mb, I believe that at 250Mts to the cabinet with an attenuation of 14 with a stable SNRM I should be receiving a lot higher speed.