On 26/01/2012 23:44, The Natural Philosopher wrote:
> Paul Cummins wrote:
>> We were about to embark at Dover, when (E-Mail Removed)d (AnthonyL)
>> came up to me and whispered:
>>
>>> My broadband speeds are appalling even allowing for the fact that I'm
>>> a long way from the exchange. Stats are:
>>>
>>> ADSL Link Downstream Upstream
>>> Connection Speed 768 kbps 448 kbps
>>> Line Attenuation 57.0 db 31.5 db
>>> Noise Margin 6.0 db 14 db
>>>
>>> My BRAS profile shows I'm on ADSL500 with a Sync rate of 576.
>>
>> You're being screwed.
>>
>
> No, he's being attenuated.
>
>> ADSL Line Status
>>
>> Connection Information
>> Downstream: 3.616 Mbps
>> Upstream: 868.2 Kbps
>>
>> ADSL Settings
>>
>> Noise margin (Down/Up): 3.5 dB / 5.5 dB
>> Line attenuation (Down/Up): 53.5 dB / 31.3 dB
> His is 57 dB.
>
> anything over 55dB is hugely marginal, and at 60+ dB you can forget any
> broadband at all.
I'd argue with that.
My attenuation ranges between 54.5 (currently) and 57.
Current router stats show:
Speed (up) 3808, (down) 448.
SNR margin (down) 8, (up) 19
It looks to me like a premises wiring problem.
I had similar problems, which were eventually rectified by disconnecting
all internal wiring and getting a DECT phone system, having a new
lead-in installed from the pole outside to the house and an Openreach
filtered faceplate with 2 sockets (DSL and phone).
My router plugs straight into the faceplate, as does my DECT phone system.
All possible sources of low speed at my end were therefore eliminated
and all is now sweetness and light.
Some of my neighbours are amazed at the speed I'm getting, as many of
them are getting a maximum of around the 1 Meg (or worse).
George