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ironman123
Recognised Expert
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Message 1 of 30

Line Profile lowering for no reason.

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Over the past 3 weeks my line profile has dropped from 77.44 to 70.33 and now is at 65.35.

My line has no noise and there is nothing extra running that could could cause the drop.

I use only one PC that is wired by ethernet cat6 to the router.

Reseting the router does not help.

I think that the fault is in the cabinet,as the DLM is not picking up any faults from my line because I have not had any power problems or noise on the line.

Imo.DLM is being set to lower my profile for no reason that makes any sense.

 

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Enigma123
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Message 2 of 30

Re: Line Profile lowering for no reason.

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It could be cross talk maybe? I personally can't wait to see what affect vectoring will have if openreach/BT pull their finger out!
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UrbanGrunt
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Message 3 of 30

Re: Line Profile lowering for no reason.

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Vector trial is ongoing as we speak, from what I have heard so far so good. I expect Openreach to make a decision on vector by Jan 2014. Don't expect them to roll it out fast tho as it will cost them some money to install it in each cabinet.

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Enigma123
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Message 4 of 30

Re: Line Profile lowering for no reason.

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I hear huawei cabs and modems are just a software update, as according to huawei their side is pretty much done. The ECI stuff i hear is a gut out job so i can see that staying like that for a good while
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MBR123
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Message 5 of 30

Re: Line Profile lowering for no reason.

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The vector trial is only good for peeps that live rite next to the cabinet like 100m or so, anywhere beyond that, its not going to happen and the question is how many people actually live that close to the cabs around the uk. I would say most are beyond that, BT should look at achieveing better speeds for the houses that live further away and not concentrating on everyone that lives next to the Fibre cabs for faster throughput, its just a cheap easy methord for Openreach/BT to look like they are doing something!. 😞 Think of the poor buggers that suffer with low speeds cause they live so far away, not just the ones that get low fibre speeds and low ADSL speeds but also the ones that have not even got a broadband connection yet and some are probably still on the 56K Dial Up, that is my issue with BT!!!. BT please leave the 70/10MB+ peeps alone, they dont need help, concentrate on the lower figures around the country and do something special for them!. 🙂

Please click on white star to the left and say thanks if I have helped you at all!. 🙂 Thank you. Some handy links Copy & Paste:-
http://bthomehub.home/
http://netalyzr.icsi.berkeley.edu/index.html
http://diagnostics.bt.com/login/?workflow=Speed
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Enigma123
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Message 6 of 30

Re: Line Profile lowering for no reason.

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Not true far lines should see improvment to as their is far end cross talk on lines
http://youtu.be/zkVmej4urx4
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MBR123
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Message 7 of 30

Re: Line Profile lowering for no reason.

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Yeah I know, it does capitalize on copper overheads but only on a short distance line, anything beyond a certain long distance it will not improve or do anything, unless of course like they say in the artical, they start installing seperate boxes up on the pole junctions above, but that method they say could be very costly so I cannot see Openreach/BT doing that!.

Please click on white star to the left and say thanks if I have helped you at all!. 🙂 Thank you. Some handy links Copy & Paste:-
http://bthomehub.home/
http://netalyzr.icsi.berkeley.edu/index.html
http://diagnostics.bt.com/login/?workflow=Speed
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ypt
Aspiring Expert
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Message 8 of 30

Re: Line Profile lowering for no reason.

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Normally the profile lowers because the gubbins in the exchange thinks the line cannot provide the higher values - have you checked that this has not coincided with your line being rebooted around midnight, for a few nights?

 

Michael

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Karl_JW
Contributor
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Message 9 of 30

Re: Line Profile lowering for no reason.

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I'm not trying to hijack this thread, but what is crosstalk?


I created a thread only a few days ago regarding a similar issue (the thread can be found here), and now I've seen this thread I am wondering if it is the same problem I am getting with my line.

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ironman123
Recognised Expert
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Message 10 of 30

Re: Line Profile lowering for no reason.

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I have checked for reboots around midnight,but the only reset that is recorded in my modem logs is the one time that I reset it myself hoping that the profile would reset [but by doing that I proberly caused another DLM panic].

I don`t think it is crosstalk [unless the lines in the cab are maybe faulty or not wired properly].

 

Have contacted the mods,so maybe they will have the cab checked.

 

Karl,

Crosstalk is caused by bad insulation,or lines crossing each other and each line picking up interference [white noise] from each other,or badly connected lines at the cab etc.

 

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