Its getting my profile increased that I want. With download noise margin of 26db and line attenuation of 21db I should have a download speed of 12Mb to 16Mb but its only 6.5Mb indicating a 8Mb profile. I seem to be banging my head against a brick wall (aka Orange) - how can I get them to increase my profile?
Joined: 13 Nov 2009Posts: 408Location: South East Essex
jwgw wrote:
Its getting my profile increased that I want. With download noise margin of 26db and line attenuation of 21db I should have a download speed of 12Mb to 16Mb but its only 6.5Mb indicating a 8Mb profile. I seem to be banging my head against a brick wall 0range - how can I get them to increase my profile?
With your attenuation you should be finally syncing at around 19meg.Mine is 30.5 and I sync at 14.5meg
I agree with your (tinytim) analysis although I'd settle for less than 19Mb! - I'm less than 1km from exchange so that probably accounts for the low line attenuation.
I've been waiting 4 weeks - 2 weeks via India call centre which had no effect and then when I changed to UK executive office another 2 weeks via e-mails and calls, also with no effect!
Joined: 13 Nov 2009Posts: 408Location: South East Essex
For the last 2 nights I've powered down my router & so far no adverse effect on speed. Obviously I get slight variations but still syncing around 14.5meg.
Del UK, I expect an apology for that outburst! It really has shocked me!
if the moderator is reading this thread, I suggest you contact Del UK and warn him over his behaviour.
I have worked exremely hard over the last few months finding things out from Orange, helping other people out and passing messages on from Orange. I like many others have suffered weeks and weeks of slow speeds. I have pushed Orange to fix this problem with the DLM and your comments are unnecessary and uncalled for.
Back on topic:
I too have left my router off overnight and it reboots fine at 12.5 meg every day since I have done this. In fact I switch it off early evening, sometimes rebooting it just before I go to bed to catch up and no problems whatsover.
Finally my speed jumped to 2Meg last night and has jumped to 4Meg tonight with an 8db noise margin.
Interleaving is still set on the line though. Is it possible that the system will disable that over the next few days or so given a constant connection?
Thanks to everyone for the advice, has helped me no end getting this issue sorted!
Before I get to the nitty gritty I'd just like to voice my thanks to BBK and the other 'resident experts' who post such valuable information and also for their comments on my problems. I'm on a (very) slow learning curve on this wireless router stuff etc.
Anyway more on my problems, I've been told that my profile is set at 24Mb, my maximum stable rate (MSR) is 16Mb but that my maximum attainable bit rate (MABR) is 7.5Mb - hence presumably my downloads of 6Mb.
Can anyone explain why MABR can be so much lower than MSR and also what conditions affect (restrict) MABR.
I think MABR is the speed which your modem and the DSLAM agree is the maximum speed that can be obtained given your line conditions at a particular time. (Noise margin, attenuation, bit errors etc.)
The MSR is the rate that Orange say is the best your line can handle (whilst showing the best stability). I think this is arrived at after the 10 day stabilisation period after subscribing/changing packages.
There maybe a fault on your line as your line must have been capable of attaining more than 7.5Mb at some stage if Orange have given you a MSR of 16Mb.
What router are you using? Does it show a maximum rate or attainable rate in the router settings?
The router is a Siemens SE572 supplied by Orange. It is really basic and doesn't give any information about attainable rate. The line stats indicate that the performance should be much better. They are
ADSL Line
Status: Cable connected
Line mode: G.992.5 (ADSL2+)
Maximum line rate: 7666 kbps (downstream) / 1232 kbps (upstream)
Noise margin: 26 dB (downstream) / 4294965978 dB (upstream)
Line attenuation: 21 dB (downstream) / 8 dB (upstream)
Output power: 21 dBm (downstream) / 12 dBm (upstream)
hmm yeah doesn't look like your on a 24Meg profile with that noise margin and sync rate... otherwise you would be syncing much higher as you know.
You need to complain hard about it and if they tell you something that's incorrect don't be affraid of shutting them up and telling them what the real issue is. I've been through all the smoke and mirrors problem solving with them already.
I'm lucky that 3 days after emailing the exec. office I got a call from from them. They arrnaged a call from excalations and they sorted my speed out within 3 days.
The line stats indicate that the performance should be much better.
If you have an NTE5 main BT socket then remove the frontplate and plug the router into the test socket located inside. If the stats are the same then it's Orange's problem. Especially if the SNRM stays at 26dB.
If the stats are better then it's your problem....check your wiring :-
Those are indeed the stats with the router plugged into the master socket with the frontplate removed. When I moved it there the stats were no different from those using my normal extension socket in another room.
If the problem is Orange's what do you think might be causing it? Just to give me something to suggest to them.
most likely is that your not on the correct profile for your line. Tell them about your stats and make them aware that you know what you can achieve and why - most noteably your noise margin whist plugged into the test socket and your speeds in the past.
The call centers are useless, they don't seem to have the power or are reluctant to request certain actions such as line regrades etc. It seems like the system has you stuck at 7.5Mb with a noise margin similar to mine when I was stuck at 1Mb.
I think you said you have contacted the exec. office right? That route worked pretty well for me. What happened for you?
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