Been having issues with my adsl connection since the 15th
its syncing slower and the ip profile has droped
Test1 comprises of Best Effort Test: -provides background information.
Your DSL connection rate: 4704 kbps(DOWN-STREAM), 448 kbps(UP-STREAM)
IP profile for your line is - 3500 kbps
Actual IP throughput achieved during the test was - 3198 kbps
I was Previousely getting a sync speed of arround 6500 and a ip profile of 6000
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN PPPoA 517628 548921 0 5563 12741 02:12:01
LAN 10M/100M 547258 517356 0 13717 6726 02:12:29
WLAN 11M/54M/108M 6956 9674 0 650 140 02:12:24
ADSL Link Downstream Upstream
Connection Speed 4800 kbps 448 kbps
Line Attenuation 29.0 db 14.5 db
Noise Margin 14.8 db 21.0 db
Checked on the bt broadband avalibility checker
And it says 4mb is the max speed on adsl max when i have had arround 6.5mb for about the last year
has bt changed somthing or is it a fault
This may sound silly, but have you, or your neighbours, put up a lot of Christmas lights? I believe that these can cause electrical 'noise', and affect broadband signals.
I'm not one of the most technical people here, but I expect there will be some other comments / questions later.
By the way, I never said it yesterday, so :welc: and :karma:
No Christmas lights on any of the houses this end of the village :-\
OK, well as I said, someone with more expertise will be along later, or in the morning, failing which, your best course of action would be to contact IDNet. You might, in the meantime, find some useful information, and things to try, in our FAQs (http://www.idnetters.co.uk/forums/index.php?topic=1904.0). :)
QuoteNoise Margin 14.8 db 21.0 db
It seems your SNR has been set to 15dB by BT because of line errors, in time it should reset back to 6dB but you can ask IDNet support to have it reset manually
It seems that something is causing noise and therefore affecting your line seriously. How about simple lights on the tree in the house? Is there anything else which is new since the 15th?
not that i know of havent got a tree yet no lights nothing new so im at a loss to what it could be
There's definitely noise around, as Alan says, your target margin has been increased to 15db, which is costing you around 2000k in sync speed. However, for your attenuation, I'd expect you to get a full 8128 sync, so I'm wondering about other possible causes.
How many phone sockets do you have, what's connected to them, do you use an extension lead to connect the router?
I had a very similar issue last year, despite no apparent Christmas lights around. I reckon that it can be affected the line at any point. I would wait until after Christmas and see if things improve.
The problem is, of course, that as more people take up ADSL, cross talk is increasing too. It's going to be a big issue when ADSL2+ finally arrives.
get the same sync speed plugged into the master socket with no other devices atatched
OK, so it's on the line between you and the exchange. Have a word with support, tell them what you've tried, and ask them to test the line.
replaceing everything back to where it was its now gon up to 5696kbps sync
Don't you just love technology. ??? Maybe, in the process, you made a better contact?
yea it s a bit better though still 1.5 mb off :)
It would still be worth first doing a quiet line test, dial 17070, then option 2. If you can hear any noise, report it as a voice fault and don't mention ADSL at all. If it's quiet though, follow up with IDNet and ask them to test the lines, they may able to see an issue.
very faint static noise
Crackle or just a feint hiss?
faint hiss
Quote from: Matt M on Dec 17, 2008, 17:00:43
yea it s a bit better though still 1.5 mb off :)
That'll be because the profile hasn't update yet.
or because of the noise margin. :)
Or both. ;D
Pessimist!
;D
I prefer to think of it as realism. :)
Quote from: Lance on Dec 18, 2008, 09:13:34
or because of the noise margin. :)
But the sync is ~6Mb. ;)
Which fits for a 29db attenuation line, Sebby. The extra 9db is costing ~2Mbps of sync.
But if the noise margin dropped from the 15db, the sync would be higher!
That's what I'm saying, Lance, the NM accounts for the difference between achieved and expected sync.
I think we've got our wires crossed here. I thought the OP was saying that despite a sync of around 6Mb, throughput was only about 2Mb, in which case this would be due to the profile.
You all lost me a while back Seb, you may as well all be talking Chinese.. ;D
Quote from: Sebby on Dec 18, 2008, 16:21:49
I think we've got our wires crossed here. I thought the OP was saying that despite a sync of around 6Mb, throughput was only about 2Mb, in which case this would be due to the profile.
I think you may be right, I've completely lost the plot by now. :)
profiles gone up to 5mb
though noise hasnt changed
Profile and noise margin are not related as such. It'll take at least 14 days for the target margin to fall.
Quote from: Sebby on Dec 18, 2008, 16:21:49
I think we've got our wires crossed here. I thought the OP was saying that despite a sync of around 6Mb, throughput was only about 2Mb, in which case this would be due to the profile.
Yep, I was talking about his sync, which he said was still 1.5mb of 'normal'.