BT Speedtest

[Sebby]

I used the master socket and got a slightly better reading i.e. the plus 16k which would take me into 6000k profile. Have now installed two best quality microfilters in series (Filters are  recommended in FAQ ).

Now get :
ADSL Status    Mode    State    Up Speed    Down Speed    SNR Margin    Loop Att.
   G.DMT   SHOWTIME   832000   6816000   5.5   36.0

which means I get 6000k profile hurrah!

I think I am very lucky as I am 2097m away from exchange according to www.samknows.com which predicts 4500k rather than 681600....Score !

Thanks for your help all !

Excellent result. It's always nice to prove the availability checker wrong. 

[Rik]

ADSL Nation wins again.

[RA-1972]

Is this any good , i am 0.6 miles form exchange ?



Test1 comprises of Best Effort Test:  -provides background information.
    IP profile for your line is - 4000 kbps
    DSL connection rate: 448 kbps(UP-STREAM)  5280 kbps(DOWN-STREAM)
    Actual IP throughput achieved during the test was - 3597 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

[Rik]

For that sync speed, your profile should be 500k higher, so I suspect you haven't maintained the sync speed over a period.

To say whether the figures are good for you line, we need to know your downstream attenuation and noise margin - Kitz will tell you how to extract them (hopefully).

[RA-1972]

Modem Status
Connection Status   Connected
Us Rate (Kbps)   448
Ds Rate (Kbps)   5280
US Margin   19
DS Margin   9
Trained Modulation   ADSL_G.dmt
LOS Errors   0
DS Line Attenuation   23
US Line Attenuation   13
Peak Cell Rate   1056 cells per sec
CRC Rx Fast   0
CRC Tx Fast   0
CRC Rx Interleaved   72
CRC Tx Interleaved   5
Path Mode   Interleaved


DSL Statistics
Near End F4 Loop Back Count   0
Near End F5 Loop Back Count   0

[Rik]

For a downstream attenuation of 23db, I'd expect you to sync at 8128. You seem to have a target noise margin of 9db, but that would only reduce the sync by 500 or so.

That suggests, therefore, that you have one of three problems:

1) Internal phone wiring picking up noise

2) Router

3) A BT line fault

If you can eliminate the first two, then ask IDNet to test your line and arrange an engineer if necessary. It's vital that you do all you can to eliminate any problems on your side of the master socket, though, as that would cost you £160+.

[RA-1972]

I will do some more checks on my line and all boxes but my exchange is showing that Virtual paths: Red
so the exchange might have a problem too .

[Sebby]

Is this any good , i am 0.6 miles form exchange ?



Test1 comprises of Best Effort Test:  -provides background information.
    IP profile for your line is - 4000 kbps
    DSL connection rate: 448 kbps(UP-STREAM)  5280 kbps(DOWN-STREAM)
    Actual IP throughput achieved during the test was - 3597 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

You should be able to achieve full sync of 8,128k with attenuation that good. I suspect it's noise being picked up by internal wiring that's the issue here.

Do you have a NTE5 master socket? If so, could you remove the faceplate (as shown in the picture) and connect your modem/router to the test socket (the socket behind the faceplate). Then re-post your stats. This bypasses all the extension wiring and it helps us see whether extension wiring is indeed picking up noise. If it is, there are a couple of options, but let's see what happens first.

[MoHux]

Could have sworn I heard an echo ..........................

[Rik]

I will do some more checks on my line and all boxes but my exchange is showing that Virtual paths: Red
so the exchange might have a problem too .

It wouldn't affect sync speeds, though, only throughput.

[RA-1972]

this is router status now , straight into box .
Modem Status
Connection Status   Connected
Us Rate (Kbps)   448
Ds Rate (Kbps)   7616
US Margin   21
DS Margin   10
Trained Modulation   ADSL_G.dmt
LOS Errors   0
DS Line Attenuation   21
US Line Attenuation   13
Peak Cell Rate   1056 cells per sec
CRC Rx Fast   0
CRC Tx Fast   0
CRC Rx Interleaved   0
CRC Tx Interleaved   5
Path Mode   Interleaved


DSL Statistics
Near End F4 Loop Back Count   0
Near End F5 Loop Back Count   0

I will do a BT speed test later and see what it comes up with u have to wait 3 hours between test.

[Rik]

That looks like your wiring is the problem, it's as clear cut as I've ever seen, even the speed fits the reduction I predicted for the 9db margin.

Have a look at the wiring guide:

http://www.idnetters.co.uk/forums/index.php?topic=1904.msg31528#msg31528

[Sebby]

this is router status now , straight into box .
Modem Status
Connection Status   Connected
Us Rate (Kbps)   448
Ds Rate (Kbps)   7616
US Margin   21
DS Margin   10
Trained Modulation   ADSL_G.dmt
LOS Errors   0
DS Line Attenuation   21
US Line Attenuation   13
Peak Cell Rate   1056 cells per sec
CRC Rx Fast   0
CRC Tx Fast   0
CRC Rx Interleaved   0
CRC Tx Interleaved   5
Path Mode   Interleaved


DSL Statistics
Near End F4 Loop Back Count   0
Near End F5 Loop Back Count   0

I will do a BT speed test later and see what it comes up with u have to wait 3 hours between test.

Is this in the front of the master socket, or actually behind the faceplate? It's a lot better, but I still think you should get full sync.

Either way, wiring is the issue, so have a read of the guide Rik posted. In summary, if you could site the router at the master socket, a filtered faceplate is the way to go. If not, removing the ring wire from all sockets and using quality filters will be better.

[RA-1972]

Ok thanks for the help guys.

[RA-1972]

Re test straight from master plug.




Test1 comprises of Best Effort Test:  -provides background information.
    IP profile for your line is - 4500 kbps
    DSL connection rate: 448 kbps(UP-STREAM)  7616 kbps(DOWN-STREAM)
    Actual IP throughput achieved during the test was - 4208 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

[Lance]

This shows that, since the last BT speedtest earlier this evening, your profile has already gone up one step to 4.5mbps.

If you keep the current sync speed of 7616kbps, your profile will rise further.

[Sebby]

Re test straight from master plug.




Test1 comprises of Best Effort Test:  -provides background information.
    IP profile for your line is - 4500 kbps
    DSL connection rate: 448 kbps(UP-STREAM)  7616 kbps(DOWN-STREAM)
    Actual IP throughput achieved during the test was - 4208 kbps

If you wish to discuss these results please contact your ISP.

If you are experiencing problems with specific applications, servers or websites please contact your ISP for assistance.

Your test has completed please close this window to exit the performance tester.

Okay, so we've proved that your internal wiring is the problem (not uncommon). Obviously at present your profile does not match the new sync; for it to increase, you'll need to stay sync'd at that rate for a few days.

So, where do we go from here? You have two options. The best is to fit a filtered faceplate, such as the ADSL Nation XTE-2005 and site the router at the master socket, preferably with a short, twisted-pair cable. If this isn't possible, removing the ring wire (scroll towards the bottom of the page) from all sockets should help a lot.

Let us know how you get on.