What a difference a sync makes

[Rik]

Prior to my 300 hour re-sync, I'd been seeing more noise on my 2700 than I was used to, but had put it down to someone using an electrically noisy air-con. However, since the re-sync, the graph has gone back to it's normal flatline state. I'm guessing that, previously, I had picked up a noisy frequency. Just goes to show how temperamental ADSL is though...

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[Sebby]

It does. Isn't that the point of bitswapping, though?

[Rik]

It is, though it looks like it wasn't working that well. It's a pity I hadn't capture the distribution graph.

[Sebby]

I know different routers handle it differently. I thought the 2700 was one of the better ones. Still, there's little logic to ADSL anyway.

[Rik]

There's lots of it, all fuzzy.

[Lance]

If only my noise margin line was flat like that! I've got a target noise margin of 6db, but you would never guess that from looking at the attached graphs.

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[Rik]

Are you sure you've not got a Netgear connected there, Lance? 

[Lance]

Yep! I just have a problem on my line which BT tests aren't picking up. Here is what happens when it is actually synced at the proper speed (about 3mb higher than in the above graphs). The second is where it resynced with the noise on the line.



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[Rik]

That's not a problem, Lance, that's a big problem!  You'll just have to move out from that power station. A 13db swing on a 2700 is crazy...

[Lance]

The problem is that it is intermittent and I know that if and when the BT engineer comes out that there would be no fault - £180 thanks very much!

I might get on to BT voice and mention intermittent crosstalk (not that we have any) and try to get a new pair...

[Rik]

Worth a try, from what I've heard. Don't you just hate intermittent faults.

[Lance]

I've got a voice engineer coming Thursday morning. Hopefully if I get a new pair, they will be better than the current one. 

[Rik]

Good luck. 

[Sebby]

Good luck, I'll be interested to see if this helps.

[MoHux]

.............. I have never used a laptop, or wifi.  So please forgive my naivety, but ............ if Lances results are as he showed when connected through his 2700, and assuming he is using his laptop, what sort of result would he get if he connected through a hot-spot??

Would that show better where in the network a fault might lie? 

Does that make sense, or shall I keep 

Mo

[Rik]

The problem would be, Mo, that it would show a completely different network, so it wouldn't serve to identify anything on his IDNet connection - if I've read you right.

[Lance]

I think you have, Rik.

To expand - it is irrelevant whether I am using my desktop or laptop, as the results are coming from my router (obviously connected to my line). If I was to connect to a hotspot, it wouldn't be my router (and in turn line) that I would be connected to.

[MoHux]

Thanks both ............. I get these 'bright' ideas sometimes.

I had been thinking, we always assume (probably rightly), that the fault lies before the signal gets to the exchange, and  I was wondering if there was any way to pinpoint just where a fault may lie, using the laptop and WiFi. 

I'll go back to sleep now .......... 

Mo

[Rik]

If there was an IDNet hotspot, it would be a great diagnostic, Mo. Sadly, they haven't got around to that yet.

[Sebby]

I had been thinking, we always assume (probably rightly), that the fault lies before the signal gets to the exchange, and  I was wondering if there was any way to pinpoint just where a fault may lie, using the laptop and WiFi. 

I know what you're saying, Mo, and it would be one way to attempt to find where the problem lies. Currently, assuming there is a NTE5 master socket, we are able to (with a fair degree of certainty) see if the fault lies in the customer's property or outside, but not any "further" than that.

[Rik]

I demand access to a test socket at the exchange!!

[Sebby]

That would be nice.

[Rik]

I'm just pondering how to drag the reel of cable back here without causing traffic chaos.   

[Lance]

50ft high poles, obviously!

[Rik]

But Sue would struggle to drag the cable up those.