Slow upload

[engco]

If I look out of the window, I can just about see the local exchange -
it's only a few hundred yards away. So I should be able to get a
pretty good throughput on the ADSL2+ line, right?

When I go to speedtester.bt.com to test the line, I get the report:

Test1 comprises of Best Effort Test:  -provides background information.
Your DSL connection rate: 16820 kbps(DOWN-STREAM),  852 kbps(UP-STREAM)
IP profile for your line is - 14000 kbps
Actual IP throughput achieved during the test was - 13065 kbps

Well, that's better than I used to get, though when I first connected to the WCN the
speed was barely faster than before - so I guess some training has been taking place.

But the upload speed is much worse: crawling along at less than 0.5 Mb/s according to
speedtest.net.

And in the early evening, the download speed drops dramatically - to below 1Mb/s at times.
I never used to get this kind of fluctuation before.

Anyone got any idea what the problem might be? I'm using a Netgear 834 which reports the
connection speed as per the BT report and:

Line attenuation: Downstream  24.5 db,   Upstream 10.7 db
Noise Margin:      Downstream  6.0 db,     Upstream: 7.2 db


Thanks,

David

[Simon]

Hi David,  and   

I'm not the most technical person to offer advice, so hopefully someone will be along soon to help properly, but in the meantime, do you know roughly what your upload speed was before the ADSL2+ upgrade?  Also, if you could post your full router stats, obscuring your IP address, it might help someone with a diagnosis. 

It may just be a question of holding on for a few days for your profile to settle, but you could also try a speed test at http://www.speedtest.bbmax.co.uk/, as the speedtest.net one isn't always that accurate.

[Sebby]

It would be good to see the router stats to determine what the upload sync is; perhaps that's the limiting factor.

On another note, I'd have thought you'd get full downstream sync with attenuation that low. Is your router connected to an extension socket? If so, and you have a BT master socket with a removable lower half, could you carefully remove it and connect the router to the socket behind, then re-post your stats?