Can I just ask BT to put a new line into the house?

Firegod

Firegod

Firegod

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Joined
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Posts
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Location
Newcastle, UK
I'm getting a lot of Rx Total Errors on the broadband according to my Modem. The house where we live is quite old, and the line is the original line into the house. Would this be the cause of these errors? If so, can I get a new line put in to fix the problem?

Only partial web pages are loading, and some not at all, and in general the internet is very slow. The modem and router are configured correctly but I have thousands of errors which I believe should be zero? :o

Any help! I've been downgraded from 2mb -> 512kbps but if this line is the problem then perhaps I can go back to 2mb.

So are BT the people to contact or my ISP?

Thanks peeps!
 
Assuming you've gone through all the master socket joy already, then reporting it as a fault with your ISP would be a start.
Collecting stats (attenuation, SNR margin) would be a good idea too.
 
Transmit
=======
Tx PDU's 80909
Tx Total Bytes 10402884
Tx Total Error Counts 0

Receive
======
Rx PDU's 98391
Rx Total Bytes 71198793
Rx Total Error Counts 10875

Connection Status Connected
======================
Upstream Rate (Kbps) 288
Downstream Rate (Kbps) 576
US Margin 20
DS Margin 9
Modulation GDMT
LOS Errors 64
DS Line Attenuation 59
US Line Attenuation 63
Path Mode Fast Path

That looks bad to me... :(
 
An ISP gave you 2Mbit with a 59dB attenuation? Nasty. Your SNR isn't very nice (attenuation is in spec for 1Mbit) either.

Over what period were those receive errors recorded? I'm assuming not too long considering you'd only downloaded 68Mb or so.

Like Tolien said, talk to your ISP, give them figures and they'll (hopefully) take it from there.
 
burbleflop said:
An ISP gave you 2Mbit with a 59dB attenuation? Nasty. Your SNR isn't very nice (attenuation is in spec for 1Mbit) either.

Over what period were those receive errors recorded? I'm assuming not too long considering you'd only downloaded 68Mb or so.

Like Tolien said, talk to your ISP, give them figures and they'll (hopefully) take it from there.
Click to expand...

Your attenuation doesnt matter, its the SNR that determines if 2mbit will work. A 59db line already on 1mbit with a SNR of above 12db would manage it, we will see a lot more cases lile this once MAXDSL is launched shortly.
 
Except it's already on 512kbps, and it's only got an SNR margin of 9dB.
Most obvious first thing to try would be hooking up to the master socket, but I presumed you'd already done that before being downgraded.
 
Dave2150 said:
Your attenuation doesnt matter, its the SNR that determines if 2mbit will work. A 59db line already on 1mbit with a SNR of above 12db would manage it, we will see a lot more cases lile this once MAXDSL is launched shortly.
Click to expand...

So you're saying that attenuation is irrelevant? So should I be able to get 2Mbit for my brother who has 64dB downstream attenuation? I think not.
 
Yeah I tried the master socket malarky. :(

Hopefully my ISP will do something about this as if not it means they can't offer me the service which I have signed for.
 
burbleflop said:
So you're saying that attenuation is irrelevant? So should I be able to get 2Mbit for my brother who has 64dB downstream attenuation? I think not.
Click to expand...

Please read up on ADSL technology before flaming posts.

Firstly, I have not seen 64db recorded on a modem before. Most modems cut off at 61-63ish, although the attenuation could be higher on a particular line it will simply not be reported.

If the 64db loss line was running 1mbit for example, with a good SNR (12+) then yes it could run 2mbit. But its unlikely it would have anywhere near that SNR at 1mbit.

Attenuation and SNR are important - but with the advent of MAXDSL, ALL attenuation limits are removed, and the line can run however fast it likes. If you have good wiring in your house (or a filtered faceplate for example) you can get a good few mbit/sec out of a line that would only do 1mbit with BT, simplly because of the limits BT currently enforce.
 
Dave2150 said:
Please read up on ADSL technology before flaming posts.

Firstly, I have not seen 64db recorded on a modem before. Most modems cut off at 61-63ish, although the attenuation could be higher on a particular line it will simply not be reported.
Click to expand...

I have. Some chipsets stop at 63dB for various reasons (notably TI AR7 chipset stuff like the DG834), but I've actually seen some Draytek routers report attenuations of 70dB+.
 
Dave2150 said:
Firstly, I have not seen 64db recorded on a modem before. Most modems cut off at 61-63ish, although the attenuation could be higher on a particular line it will simply not be reported.
Click to expand...

The BT supplied router (Efficient Networks something or other) and a Cisco 2611 with an ADSL WIC (I assume other Ciscos will too) will show 64dB quite happily.

Attenuation and SNR are important - but with the advent of MAXDSL, ALL attenuation limits are removed, and the line can run however fast it likes. If you have good wiring in your house (or a filtered faceplate for example) you can get a good few mbit/sec out of a line that would only do 1mbit with BT, simplly because of the limits BT currently enforce.
Click to expand...

What has MaxDSL got to do with anything at the moment? If the OP were using MaxDSL then I would accept what you said about attenuation, but he isn't, so I don't.
 
burbleflop said:
The BT supplied router (Efficient Networks something or other) and a Cisco 2611 with an ADSL WIC (I assume other Ciscos will too) will show 64dB quite happily.



What has MaxDSL got to do with anything at the moment? If the OP were using MaxDSL then I would accept what you said about attenuation, but he isn't, so I don't.
Click to expand...

I was talking about 2mbit working on ADSL technology, not getting BT to give you 2mbit!
 
Have I started something here.. you guys have lost me. :o

I just got an email back from my ISP saying "we have you down on our 2mb service"????! Err I don't think you do! Looks like I'm going have to phone and have a good old chat with them as something seems wrong. At least they say they can run some tests on the line for me.
 
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