can my line handle more speed

punto123

here are my current stats

Downstream Upstream
Connection Speed 3360 kbps 448 kbps
Line Attenuation 38 db 10.5 db
Noise Margin 10 db 23 db


i have just the one socket and i am plugged into the test socket
I am 1.6 miles from exchange by road.

my friend send with a line attenuation of 38 i should see a much better speed (around 6meg) than i am currently getting , is this correct ?

John_the_Boy

I have the following:-

Connection Speed 5824 kbps 448 kbps
Line Attenuation 39 db 22 db
Noise Margin 9.8 db 21 db

I am about 2.5 miles from my exchange.

I had to tweak my SNR to get that, I was averaging around 3.8 before.

penrhyn

With a downstream attenuation of 38 db you should be capable of syncing at around 11 Mbps, see table below:-
32db.......2.3km.....16000kbps
35db.......2.5km.....14500kbps
40db......2.9km.......11800kbps
45db.......3.2km.........8500kbps
50db........3.6km........6500kbps
55db........4.0km.........4500kbps
60db........4.3km.........3200kbps
65db........4.7km.........2000kbps

However you are currently being capped by your ISP, the noise margin of 10db indicates this.
This may have been done to give you a stable connection if your line is noisy.
Retake your stats from the test socket.

macman

OP say he/she is already plugged into the test socket.

punto123

i dont suffer from any disconnects on my line , how could i obtain a higher sync , is it worth getting another router , i have a netgear dg834g

i have also changed the filter a new times but no increase

kwikbreaks

Your upstream sync of 448 shows you are almost certainly on a BTw IPstream plain ADSL (Max 8Mbps) connection and your friend is quite right saying that your line should be delivering around 6Mbps but that would be with a 6dB noise margin and yours is higher and that accounts for most if not all of the lost speed.

If you reboot the router and check the stats immediately the reported noise margin will be what the BTw DLM has set your target to (it will be either 9 or 12dB as they use a 3dB step). It will have been set higher than the default 6dB because your line was unstable. That is automatic and getting it reset is virtually impossible and pretty pointless anyway.

The DG834G is a pretty good router and I don't see much point in changing it.

Try dialling 17070 and taking option 2 quiet line test to see if there is any audible noise. If there is call it in as a fault. Unfortunately no ISP is going to call out BT OpenReach to look at your line because it is running a bit slow and if you have your router directly into the test socket on a short lead there isn't anything you can do to improve things yourself.

macman

But if you do have some noise on the line and report it to your line rental provider (who is your ISP and your line rental provider?), then they should test it and get OR out if necessary. If you do this, do not mention any problem with your broadband service, as they will then refer you back to your ISP. You must report it as a line fault on voice calls.

myself321

just did a reboot of the router , checked the noise straight away which showed 12db

sync has gone to 4544 kbps , not sure if that will hold though.



for the last few months i have noticed the noise to be between 2 and 6 the go up to 8,9,10n then back down to 3 - 6. over a 24hr period

will this be what is causing my sync to not increase?

did the quiet line test line test no noise on the line at all. so why is the router reporting so much noise ?

is there anything i can do to get a better sync or have i just got a bad line and have to put up with it, many thanks

macman

Who is your ISP? Have you raised it with them?

myself321

yes i have its post office they say they can not raises it will bt until i hit the fault threshold for my line which is 2700kbps

macman

Time to switch ISP's methinks.
LLU options?