Hows my line stats?

-Mike-

-Mike-

-Mike-

Soldato
Joined
22 Dec 2002
Posts
10,165
Location
Minehead
Hi all,

Just wondering what part of these stats was responsible for me not getting the full 8mb?

ADSL Link Downstream Upstream
Connection Speed 7392 kbps 448 kbps
Line Attenuation 11 db 1.5 db
Noise Margin 8 db 25 db

Any advice appreciated :)
 
Your noise margin is pretty low considering your line attenuation. Could well be an extension or something plugged into the socket thats causing it.

Have you tried taking the front plate off the master socket, and checking the stats again?
 
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You need to be plugged into the master socket to achieve the best speeds your line can, ring wire?
 
To the posted above - Your post confuses me, what on earth is ring wire?

I just plugged it into the master socket and the speed has dropped again presumably because it thinks it had an error? AFAIK still in 10 day period but line stats now are as follows

Connection Speed 6816 kbps 448 kbps
Line Attenuation 10 db 1.5 db
Noise Margin 9 db 25 db

Edit : I say the master socket its the main plug thats here, I'm not taking the cover off for fear of having to replug it somewhere else again and the stupid speed dropping even more!
 
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If you are in the first 10 days then you shouldn't turn the router off at all.

The ring wire is something old phone lines have, its an internal thing, basically causes interference. But with your stats i wouldn't worry, you should easily see 8mbps
 
Ryan111 said:
If you are in the first 10 days then you shouldn't turn the router off at all.

The ring wire is something old phone lines have, its an internal thing, basically causes interference. But with your stats i wouldn't worry, you should easily see 8mbps
Click to expand...

Well its in the main socket now, but it still hasn't improved the line stats! I won't remove the power again now!We've had a few power cuts here the last few days so unfortunately the bulk of its power lack moments haven't been my fault!
 
That could be the reason why your sync speed is lower than expected, its seeing each powercut as a drop in connection and lowing the speed it syncs at...
 
If it was DLM reducing your speed to make up for perceived instability you'd see much bigger jumps in SNR margin.
 
tolien said:
If it was DLM reducing your speed to make up for perceived instability you'd see much bigger jumps in SNR margin.
Click to expand...

Anyway I can improve anything at all? I can see the main exchange from my house I just don't understand why it won't sync up at the full 8mb?

I take it if it detects no more power drops or whatever it would see them as the speed should increase?
 
your really stuck at the moment being on the 10 day "testing" period. As you mentioned, each time the router is switched on and off it can interpret it as a error.

Really with a 10dB line attenuation (means your really close to the exchange) with a sync speed of 6/7mb your Noise margin should be a lot higher.

Generally the lowest most ISP's use for the Noise margin (also known as SNR) is 7dB, once it goes below that, you might start experiencing drop outs.

Something on your internal wiring might be artificially lowering your noise margin, which will limit the top sync speed. With the short line you have, you could easily be reaching 20mb speeds if your ISP provides that service.

Plugging directly into the front of the master socket, without removing the face plate will not remove any internal extensions which could be lowering your noise margin. The ring wire mentioned was used "back in the day" as a means of making old phones ring, it is not really needed any more and can pick up external noise from electrical equipment, all sorts of things really, thus causing your noise margin to drop, thus limiting your maximum sync speed

Hopefully that makes sense lol!
 
ljt said:
your really stuck at the moment being on the 10 day "testing" period. As you mentioned, each time the router is switched on and off it can interpret it as a error.

Really with a 10dB line attenuation (means your really close to the exchange) with a sync speed of 6/7mb your Noise margin should be a lot higher.

Generally the lowest most ISP's use for the Noise margin (also known as SNR) is 7dB, once it goes below that, you might start experiencing drop outs.

Something on your internal wiring might be artificially lowering your noise margin, which will limit the top sync speed. With the short line you have, you could easily be reaching 20mb speeds if your ISP provides that service.

Plugging directly into the front of the master socket, without removing the face plate will not remove any internal extensions which could be lowering your noise margin. The ring wire mentioned was used "back in the day" as a means of making old phones ring, it is not really needed any more and can pick up external noise from electrical equipment, all sorts of things really, thus causing your noise margin to drop, thus limiting your maximum sync speed

Hopefully that makes sense lol!
Click to expand...

Makes perfect sense mate :) Just wondering what the easy fix is :P
 
Which ISP/Service is it?

It doesn't look like DLM, your noise margin is very low considering the sync speed and attenuation.

Is there anything else plugged into the phone sockets, either phones, Sky etc.?
 
finding your master socket, which should look like this;
bt_master_socket_2.jpg


remove the two screws which will allow you to remove the bottom half (faceplate). Behind that to the right is a phone socket, plug your modem into that. Any extensions etc will be attached to the back of the bottom half face plate
 
I have a friend who is a BT engineer, he replaced all my old wiring and removed an alarm wire that connected to telephone system! I saw a 60% improvement in my line sync :D

If you know of an engineer or somebody in the local area who does telephone wiring get them to have a look :)
 
ljt said:
finding your master socket, which should look like this;
bt_master_socket_2.jpg


remove the two screws which will allow you to remove the bottom half (faceplate). Behind that to the right is a phone socket, plug your modem into that. Any extensions etc will be attached to the back of the bottom half face plate
Click to expand...

I think its been replaced during the renovation of this place! The main socket looks like a normal one with wires going off to the lounge socket! The lounge socket is then supposed to go off to my bedroom and another bedroom but that hasn't been wired in yet.
 
Bloomfield said:
Which ISP/Service is it?

It doesn't look like DLM, your noise margin is very low considering the sync speed and attenuation.

Is there anything else plugged into the phone sockets, either phones, Sky etc.?
Click to expand...

Its tiscali - I know I know moan groan :P Awful ISP etc, but my family have never ever had any problem with them!
 
Remove the bottom of the socket and plug directly into the test socket behind then post the stats on here.
 
If it is wired up as you said it is, then it makes it somewhat awkward, but not impossible to test. Idealy extensions shouldn't really be daisy chained.

What you'll need to do is find where the feed to your house comes in, either it'll be from a pole or underground on the front of the wall in grey capping, or through the wall cavity in some older houses.

Once you have found the main socket, you need to make a note of how it's wired up and disconnect the cable that goes off to your other socket. Then re-connect your modem to the main feed and re check the stats.

If you are unsure of doing this yourself, then speak to the person who is wiring your sockets up.
 
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