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Author Topic: ADSL Filters  (Read 2887 times)

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TheBoy

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Re: ADSL Filters
« Reply #15 on: 06 November 2009, 18:20:59 »

Quote
Quote
I use one of these:

http://www.adslnation.com/products/xte2005.php

And then have Cat5E FTP to connect to the router   

Router to PC RJ45

What about a better quality lead from the Filter to the modem?  (or is that what you meant and I have got it wrong)
i think thas what mark meant.  routers often come with crap.


that said, until you get your sync speed, its all irrelevent - you may sync at 5/6mb, but exch congestion or shite isp holds back tests.  only speedtester worth using is the special bt one
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CaptainZok

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Re: ADSL Filters
« Reply #16 on: 06 November 2009, 18:25:58 »

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I use one of these:

http://www.adslnation.com/products/xte2005.php

And then have Cat5E FTP to connect to the router
I binned my adslnation one when I found a supply of BT ones ::)

For me, the BT ones worked better   (I had an awful line - high attn and low snr, and disconnects several times a day even on a legacy 512k line, but I knew the right people to get that fix :y.  Unlike most of my neighbours, still suffering poor broadband ::))


I'm really pleased with both my lines, bother stability and performance - 7.1Mb sync on a 3.5km is a very good result
Don't suppose you know any of the right people around this area do you TB?
I've changed to an NTE faceplate, disconnected all extensions and plugged the router into the master socket which has increased the sync from 4000ish to around 6/7000 but we still suffer many random drops daily along with poor s/n and high downstream attenuation.

The line seems to drop mainly during the hours of darkness, or sticks and has to be rebooted showing stats like the pic below.

http://i107.photobucket.com/albums/m302/CaptainZok/dslstats.jpg

Any ideas?
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TheBoy

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Re: ADSL Filters
« Reply #17 on: 06 November 2009, 18:29:25 »

Quote
Quote
Quote
I use one of these:

http://www.adslnation.com/products/xte2005.php

And then have Cat5E FTP to connect to the router
I binned my adslnation one when I found a supply of BT ones ::)

For me, the BT ones worked better   (I had an awful line - high attn and low snr, and disconnects several times a day even on a legacy 512k line, but I knew the right people to get that fix :y.  Unlike most of my neighbours, still suffering poor broadband ::))


I'm really pleased with both my lines, bother stability and performance - 7.1Mb sync on a 3.5km is a very good result
Don't suppose you know any of the right people around this area do you TB?
I've changed to an NTE faceplate, disconnected all extensions and plugged the router into the master socket which has increased the sync from 4000ish to around 6/7000 but we still suffer many random drops daily along with poor s/n and high downstream attenuation.

The line seems to drop mainly during the hours of darkness, or sticks and has to be rebooted showing stats like the pic below.

http://i107.photobucket.com/albums/m302/CaptainZok/dslstats.jpg

Any ideas?
sadly, those routers dont show line error stats, so a bit of guesswork required.  If you are getting multiple daily drops, the bras should sort it out, stepping speed down slowly, until it finds happy medium.  If this isn't happening, isp is first port of call
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CaptainZok

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Re: ADSL Filters
« Reply #18 on: 06 November 2009, 18:33:42 »

Problem being it will stick with a dead connection till it is rebooted which I think then restarts with the default training so it doesn't get any better.
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Re: ADSL Filters
« Reply #19 on: 06 November 2009, 18:37:59 »

Quote
Problem being it will stick with a dead connection till it is rebooted which I think then restarts with the default training so it doesn't get any better.
hmmm, should autoreconnect.  but then its cisco junk, what do you expect ;D


seriously, and ignoring my current gripes with cisco, useless idiots, that does sound hardware/firmware related.  Any updates available?

is it silver (awful) or blue/black (better).  May not be relevant, but lots of connections in nat table (eg, p2p heavily used) can panic those, due to low memory
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CaptainZok

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Re: ADSL Filters
« Reply #20 on: 06 November 2009, 18:40:27 »

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Problem being it will stick with a dead connection till it is rebooted which I think then restarts with the default training so it doesn't get any better.
hmmm, should autoreconnect.  but then its cisco junk, what do you expect ;D


seriously, and ignoring my current gripes with cisco, useless idiots, that does sound hardware/firmware related.  Any updates available?

is it silver (awful) or blue/black (better).  May not be relevant, but lots of connections in nat table (eg, p2p heavily used) can panic those, due to low memory
Latest firmware, no p2p but his lordship does use xbox live regularly and it's one of the silver ones.
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Re: ADSL Filters
« Reply #21 on: 06 November 2009, 18:44:43 »

Quote
Quote
Quote
Problem being it will stick with a dead connection till it is rebooted which I think then restarts with the default training so it doesn't get any better.
hmmm, should autoreconnect.  but then its cisco junk, what do you expect ;D


seriously, and ignoring my current gripes with cisco, useless idiots, that does sound hardware/firmware related.  Any updates available?

is it silver (awful) or blue/black (better).  May not be relevant, but lots of connections in nat table (eg, p2p heavily used) can panic those, due to low memory
Latest firmware, no p2p but his lordship does use xbox live regularly and it's one of the silver ones.
dont use xbox live, so cant say.

as its silver, anything you can borrow to prove off router.

bt 5861s make great test routers, assuming they have 2mb flash, but no wifi.

I have a bucketload here with knackered psus
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Re: ADSL Filters
« Reply #22 on: 06 November 2009, 19:02:52 »

I have a couple of old routers lying around somewhere,
USR 9001, 9106 and an old BT Voyager that's been reflashed to work with non BT providers (205?).
Any of those do?
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Mr Skrunts

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Re: ADSL Filters
« Reply #23 on: 06 November 2009, 19:49:38 »

Ok, had a look through the modem, not actually found anything that says sys speed.  But found this lot.   Or should I keep looking.  (highlighted what I think my be relevmt)


Modem Status
      
Connection Status               Connected
Us Rate (Kbps)               448
Ds Rate (Kbps)               7424
US Margin               23
DS Margin               3
Trained Modulation               GDMT
LOS Errors               0
DS Line Attenuation               39
US Line Attenuation               23
Peak Cell Rate               1056 cells per sec
CRC Rx Fast               0
CRC Tx Fast               0
CRC Rx Interleaved               4303
CRC Tx Interleaved               64
Path Mode               Interleaved
DSL Statistics
      
Near End F4 Loop Back Count               0
Near End F5 Loop Back Count               0
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KillerWatt

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Re: ADSL Filters
« Reply #24 on: 06 November 2009, 19:57:27 »

Quote
sadly, those routers dont show line error stats,
DD-WRT....turns that £30 router in to something that will have (so called) experienced techie's crapping themselves.
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Re: ADSL Filters
« Reply #25 on: 06 November 2009, 20:03:20 »

Quote
Ok, had a look through the modem, not actually found anything that says sys speed.  But found this lot.   Or should I keep looking.  (highlighted what I think my be relevmt)


Modem Status
      
Connection Status               Connected
Us Rate (Kbps)               448
Ds Rate (Kbps)               7424
US Margin               23
DS Margin               3
Trained Modulation               GDMT
LOS Errors               0
DS Line Attenuation               39
US Line Attenuation               23
Peak Cell Rate               1056 cells per sec
CRC Rx Fast               0
CRC Tx Fast               0
CRC Rx Interleaved               4303
CRC Tx Interleaved               64
Path Mode               Interleaved
DSL Statistics
      
Near End F4 Loop Back Count               0
Near End F5 Loop Back Count               0
Forget what you've been told about sync speeds thus far Skruntie, that's not even the beginning of the battle.

If your "DS Margin" actually means SNR Ratio, then that is a crap figure my friend (the higher the number, the better).
You really need to get almost double that to even get close to what your ISP claims you will get.

Are you on fixed rate DSL, or Rate Adaptive?
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Re: ADSL Filters
« Reply #26 on: 06 November 2009, 20:12:17 »

This is where I really dont have a clue.

When I had the line installed the "Installation" guy (  ::) got it right this time Mark  :y ) had to go backwards and fords to a road box and the exchange.

He had to change the pairs over on something (Jamie had mentioned this in the thread I posted at the time) but he did say I was suffering a lot of line noise at the time.

I have tackled BT in the mean time but all they do is quote the statement of there is a £120 charge plus vat if we dont find a fault, and of course they are in a possition to tell me whatever they want asI dont have any equipment , trst gear or knowledge to say otherwise, and as the phone and the fact I am online every day will get the reply of "So whats the problem"


Is there any way I can perform tests and find out information myself.



Quote
Are you on fixed rate DSL, or Rate Adaptive?
  Am clueless on that.  :-/
« Last Edit: 06 November 2009, 20:13:23 by skruntie »
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KillerWatt

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Re: ADSL Filters
« Reply #27 on: 06 November 2009, 20:21:59 »

Looking back, it's odds on that you are on the Rate Adaptive service.

However, your (somewhat impressive when you first look) sync speed doesn't mean crap in the real world.
The figure you need to address is the SNR ratio, because until you improve that number you won't be going any faster in the real world no matter what your so called sync speed is.

Sync speed is just that mate, it's the speed you sync'd at the exchange with....other factors on your line will determine your actual upload/download speeds.
« Last Edit: 06 November 2009, 20:22:23 by KillerWatt »
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KillerWatt

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Re: ADSL Filters
« Reply #28 on: 06 November 2009, 20:24:23 »

Quote
but then its cisco junk, what do you expect ;D
Just as I start to respect what you say, you f**k it up with another load of crap  :-/
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TheBoy

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Re: ADSL Filters
« Reply #29 on: 06 November 2009, 22:52:06 »

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Quote
sadly, those routers dont show line error stats,
DD-WRT....turns that £30 router in to something that will have (so called) experienced techie's crapping themselves.
Haven't looked for a while, didn't think that run on the silver ones?
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