View Full Version : Yet another dumb question.
My router never stays connected to the exchange for a 24 hour period.
From around 06.00 through to late evening it is ok and then overnight it drops out and starts again.
I guess I have a noisy line.
I asked for interleaving to be switched off and since then my average speeds have been better despite the IP Profile reducing from 6500 to 5500
IP profile for your line is - 5500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 6240 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 4363 kbps
Line mode G.dmt Line state Show Time
Latency Type Fast Line Up Time 00:04:02:40
Line Coding Trellis On Line Up Count 78
Statistics Downstream Upstream
Line Rate 6240 Kbps 448 Kbps
Noise Margin 7.1 dB 23.0 dB
Line Attenuation 19.5 dB 11.0 dB
Output Power 19.8 dBm 12.3 dBm
Would I be better to have interleaving switched back on and is there any correlation between Latency type and average download speeds?
It may help as Interleaving can help the line sustain a sync to the exchange by reducing the amount of errors on the line. I have to say you need to check out your internal setup/wiring though. You should easily have the full 8128 Line Rate as you are only around 1km from the exchange
Your Line Attenuation is very good (19.5). Check out www.dslzoneuk.net/socket.php
Whats your phone socket/extension/filters setup?
James
i Wish my Statistics were that good one thing you dont have is a noisy line
What has happened overnight!!!!!
Went to bed around midnight, all ok. Speeds around 4500kbps.
This morning, treacle !!
Bt test
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 3000 kbps
DSL connection rate: 448 kbps(UP-STREAM) 480 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 297 kbps
Router stats:
Line mode G.dmt Line state Show Time
Latency Type Fast Line Up Time 00:03:27:43
Line Coding Trellis On Line Up Count 1
Statistics Downstream Upstream
Line Rate 480 Kbps 448 Kbps
Noise Margin 15.4 dB 11.0 dB
Line Attenuation 18.0 dB 10.5 dB
Output Power 16.0 dBm 12.4 dBm
I have done nothing.
Flakey or what?
Look at the line
DSL connection rate: 448 kbps(UP-STREAM) 480 kbps(DOWN-STREAM)
It's quite clear there is a line isue. Did you follow the instructions about the sockets/filter/extensions etc? That's the likely culprit.
Can you describe exactly how your phone line setup is done?
Cheers
James
Also bear in mind if it's not sorted soon you'll end up with a really naff profile speed and a high SNR target margin...
In order to solve this problem, I have now removed all extension sockets from the one and only socket that is connected to the outside world. The router and telephone are both connected using the correct filter to this one and only socket. There are only two wires connected. I will now leave well alone and see what happens.
Currently the IP profile has reduced from 6000 last night to 3000.
How long does it take for the "system" to change?
If I still get line dropouts what then?
It usually takes 3 days for the BT profile to update...
What is your current router connection speeds?
If you still get dropouts we report to BT...
DSL Connection
Link Information
Uptime: 0 days, 2:39:08
Modulation: G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 7,904
Data Transferred (Sent/Received) [MB/MB]: 4.82 / 21.29
Output Power (Up/Down) [dBm]: 11.5 / 19.5
Line Attenuation (Up/Down) [dB]: 10.5 / 21.0
SN Margin (Up/Down) [dB]: 22.0 / 6.0
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 3 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 0 / 0
HEC Errors (Up/Down): 0 / 0
I had the same problem ip profile messed up,
Teach me to mess around with DMT tool, its ok if you don’t keep rebooting the router
I left it connected for about 12 hour over night, before I did a power down and a reboot of the router which did recover slightly
Just done the BT test. Oh dear.
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 7904 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 457 kbps
Oh dear??? Not!
Your router has now connected at almost the full 8Meg. Your disconnection problems will now be obsolete ;) Compared to before.... that's fantastic.
In 48hrs or so your profile should rise to over 6000...
James
Still connected, 23 hours and counting.
IP profile remains at 500 kbps so fingers crossed.
DSL Connection
Link Information
Uptime: 0 days, 22:58:04
Modulation: G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 7,904
Data Transferred (Sent/Received) [MB/MB]: 18.98 / 75.02
Output Power (Up/Down) [dBm]: 11.5 / 19.5
Line Attenuation (Up/Down) [dB]: 10.5 / 21.0
SN Margin (Up/Down) [dB]: 22.0 / 6.0
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 14 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 12 / 11
HEC Errors (Up/Down): 12 / 3
Now 2 days and counting
Bandwidth has been constant 448/7904
IP profile up to 3500 this morning.
Does the IP profile go up in steps?
What can I expect it to finish at?
BTW. Thanks for help and advice, much appreciated.
It takes 3 days (72hrs) to fully go up to the best profile for your line (around 6500)
James
James.
Does the IP profile increase in steps. The synch rate has been constant at 448/7904 with no disconnects for nearly 4 days.
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 3500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 7904 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 1346 kbps
Usually after the 3 days it should go up to full whack. Keep your eye on it...
James
Latest stats.
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 6500 kbps
DSL connection rate: 448 kbps(UP-STREAM) 7904 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 4228 kbps
DSL Connection
Link Information
Uptime: 5 days, 2:47:21
Modulation: G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 7,904
Data Transferred (Sent/Received) [MB/MB]: 124.94 / 778.08
Output Power (Up/Down) [dBm]: 11.5 / 19.5
Line Attenuation (Up/Down) [dB]: 10.5 / 21.0
SN Margin (Up/Down) [dB]: 22.0 / 6.0
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 75 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 60 / 72
HEC Errors (Up/Down): 36 / 33
Much better - top profile :)
Another related question.
The wonderful BT computer that monitors line performance seems to be very willing to quickly reduce the IP profile following a number of disconnects.
As it is impossible for BT to know whether the router disconnects because of a line problem or the user manually rebooting or something, then how many disconnects are you allowed before your speed is slashed?
Surely the other parameters such as sync rates are more applicable.
These do not change when you reboot a few times.
Is my understanding correct?
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