Sorry Del, I know this was @Tim.....but that setting is wacky
These are my stats and interleaving is set also, at a lower depth though...
> show adsl
--------------------------- ATU-R Info (hw: annex A, f/w: annex A) -----------
Running Mode : G.DMT State : SHOWTIME
DS Actual Rate : 1024000 bps US Actual Rate : 608000 bps
DS Attainable Rate : 4288000 bps US Attainable Rate : 1096000 bps
DS Path Mode : Interleave US Path Mode : Interleave
DS Interleave Depth : 64 US Interleave Depth : 8
NE Current Attenuation : 45 dB Cur SNR Margin : 28 dB
DS actual PSD : 18. 4 dB US actual PSD : 11. 8 dB
ADSL Firmware Version : 232201_A
-------------------------------- ATU-C Info ---------------------------------
Far Current Attenuation : 25 dB Far SNR Margin : 19 dB
CO ITU Version[0] : 00004244 CO ITU Version[1] : 0000434d
DSLAM CHIPSET VENDOR : < BDCM >
You should not be able to re-synch higher than what the DLM requires......that proves it is still not repaired.
On the <a href="http://btbb.at/theside?LID=21">BT</a> system even if any noise/instability has cleared up, if the IP Profile has not increased then you cannot re-synch at a higher speed.
Yes exactly! Therefore either the DLM is still faulty like you suggest or the cause of BBKs resyncs is not the DLMs doing at all. The DLM couldn't have told the DSLAM to resync at 9Mb as when you reboot you wouldn't be able to get back to 12Mb as your profile would have been changed as Borednow says.
With an SNR of 9db, it could decrease quite suddenly to a level where your modem can no longer hold sync. It may just be bursts of line noise causing the instability and restricting the number of bits that can be loaded at that time.
I have router stats that has displayed a SNRM of between 9.5 and 10.5 for days on end. Tonight it has stayed rock solid at 9.1. I know tomorrow at the same time as today, the DLM will try and mess my line up. Over the weekend, a constant 12.5 meg profile every minute of every hour! Funny how it did not resync then, only when the DLM becomes active during the weekdays.
BTW no power point by BT master socket. (Have tested and same speed roughly)
I used to receive 8061Kbps on this setup, with downstream of 6500/7000 Kbps
Have spoken to Orange Tech in past, change this & that b****x....
The person I have been speaking to agrees, I should be sync'ing at higher speed, as we can both see this..... Orange guy with details & me looking at Router Stats......... (There is less than 500bps in 2 readings)
DS now
Noise Margin: 18.8 dB
Connection Rate: 2046 Kbps
Line Attenuation: 43.0 dB
Power: 18.9 dBm
Max Rate: 10721 Kbps
Router stats from all of yesterday afternoon and all of last night show a SNRM of between 9 and 10 for every minute of that time period! !! Line is rock solid! No noise spikes, no resyncs, perfect!
So can anyone answer me this, probably at around 9:45 this morning, if Orange have not listened to my requests for the DLM not to sync my line again, how come the DLM will try and drop my line to 9 meg?
It has data collected from the last day, the last week, the last 2 weeks that my line has been happy with 12.5 meg speeds, My SNRM has been around 9.5 average and steady throughout this time YET the DLM will downgrade me?
Because they don't want you using that 12meg download speed because you'll mess up their broadband supply strategy.........that's why they won't use 6dB default Target SNR.
If they reduce every connection by 25% then there's enough spare capacity in their system and they won't need to increase investment over the next 5 years.
Joined: 13 Nov 2009Posts: 408Location: South East Essex
BBK
The speed that the DLM drops you down to is still very usable so I'd be inclined just to leave the router on permanently without rebooting and re-syncing and see just what the DLM does over a decent period.
It could be that with you fighting against it that it's getting confused somewhere in it's logic. It's my understanding (maybe hope is a better word) that when it's dropped the speed it will continue to monitor the stats and re-assess the MSR with the eventual result that the speed will be upped to a more satisfactory level.
Apart from my play with SRNM I've really done nothing to interrupt the DLM's process and I'm getting no re-syncs as a result. When I dropped the SRNM to a 6dB profile I lost 300kbps on the upload speed but once I left it all alone that upload speed came back to 1300, thanks to DLM re-adjusting things.
So, can conclude, that my internal wiring not the issue with high line attenuation. 0.5 difference
You sync rates are similar to everyone else thats had this problem. The upstream is always at 608kbps. Its not your internal wiring, i've been through all the steps to ensure that as i'm sure everyone else has on this forum. I shaved off about 0.5db attenuation by changing the master socket.
You won't see any improvement until they intervene at their end. As far as their systems think you have a stable connection, that's all that matters it seems ATM...
I got a call from the exec. office yesterday but was out, he supposed to be calling back today but left a message saying he is aware of the problems and will "accelerate" the issue for me. Hopefully they will "accelerate" my speed! ha
So, can conclude, that my internal wiring not the issue with high line attenuation. 0.5 difference
You sync rates are similar to everyone else thats had this problem. The upstream is always at 608kbps. Its not your internal wiring, i've been through all the steps to ensure that as i'm sure everyone else has on this forum. I shaved off about 0.5db attenuation by changing the master socket.
You won't see any improvement until they intervene at their end. As far as their systems think you have a stable connection, that's all that matters it seems ATM...
I got a call from the exec. office yesterday but was out, he supposed to be calling back today but left a message saying he is aware of the problems and will "accelerate" the issue for me. Hopefully they will "accelerate" my speed! ha
Yes but was 0.5.......... must be allowed full 20Mbps now surely?????? PMSL
Orange seem to be only ISP, that do not have control over new DLM????
Stats for tonight.......
Downstream
Noise Margin: 18.4 dB
Connection Rate: 2046 Kbps
Line Attenuation: 41.5 dB
Power: 18.8 dBm
Max Rate: 12940 Kbps
Well my line seems to have settled around 3 meg,
router now been on constanly since 21st feb, but dlm still seems to kick in mainly in the afternoon.
results below from router stats
9.30 am 2954kbbs noise 10.2
12.45 3420 10.1
1pm 3372 10.1
14.30 3443 10.1
between 15.39 and 16.20pm 8 resyncs all at 3443
why does it do this
well i must be quite lucky my line went straight to the 12meg profile and has not moved since i cant see on my router when it resyncs so i dont know if it has or not but it is sync'd at the same speed as it was a week ago
I've recently bitten the bullet and moved from BE to Orange because Orange had a nice iphone/home phone/home broadband deal.
I was previously v happy with BE, until I realised that there monthly prices were quite expensive to what Orange and Sky now offer - so I made the move.
I'm on the Chiswick exchange (London) and live as the crow flies about 1km from the exchange, but looking at the road network, I'm guessing somewhere between 1.5 and 2km of cabling.
With BE I was getting between 8.5 and 10mbps download on their speedtouch router. Pretty reliable, although I would get the odd drop out.
I've got a SE572 Livebox router and I'm getting btw 5.5 and 6.5 mbps download speed. I've not moved, so why the decrease?
So I called Orange and they say my line supports up to around 7mbps. Now, I've been with BE for 3 years and never had speeds as low as 7 so I tried to explain that it was nonsense. However, I've got nowhere, despite a few phone calls.
My stats are from the livebox stats page are:
Status: Cable connected
Line mode: G.992.5 (ADSL2+)
Maximum line rate: 6402 kbps (downstream) / 1021 kbps (upstream)
Noise margin: 10 dB (downstream) / 4294966132 dB (upstream)
Line attenuation: 33 dB (downstream) / 16 dB (upstream)
Output power: 21 dBm (downstream) / 12 dBm (upstream)
Speedtest.net shows the following:
I think that in theory I should be able to get up to around 12mbps download based on my attenuation and estimated distance from exchange - but I'm not too sure.
Can someone advise if the speed I'm getting is reasonable or not based on the above.
Also, how do I begin to get Orange to understand that the line test they did at the start of contract is not representative of what speeds I have previously achieved.
What's more, Orange never even told me that 7mbps was the top speed the line test came out with - I only checked the orangehome email account when the router turned up and that is when I saw the line speed test results -a bit late in the day!
I'm a reasonable person - I'm not expecting 12 or 14mbps. Just getting the same as previously would be acceptable!
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