DLM on Openreach FTTC

I have been banging on about ping latency for quite a long while because as a avid gamer i obviously want the ping as low as possible and have come across a post on a different forum stating that BT can provision FTTC lines.
Match the way a line is managed to the way  your customer uses it:
Standard – best overall balance between speed and stability for general Internet users
Stable – prioritise stability over speed for  IPTV videoconferencing, home workers and businesses transferring data and IPTV
Speed – prioritise speed over stability for online gamers.
If "and its a big if" BT could do this why have we never been told?
http://www.openreach.co.uk/orpg/home/products/super-fastfibreaccess/fibretothecabinet/fttc/downloads...

BT Retail can only supply what BT Wholesale sell to them. BT Wholesale supply what Openreach offer. Openreach really do offer the 3 choices 'Speed', 'Standard' and 'Stable'.
However, BT Wholesale call these 'Standard', 'Stable' and 'Super Stable'.
The translation is:
BT Wholesale 'Standard' = Openreach 'Speed'
BT Wholesale 'Stable' = Openreach 'Standard'
BT Wholesale 'Super Stable' = Openreach 'Stable'
The question is, which does BT Retail choose?
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Similar Messages

  • Infinity 2 download speed fluctuations

    I had had BT Broadband Unlimited for over a year with a solid 14Mbps down and 1Mbps up connection. I participate in the SamKnows monitoring programme and have their white box installe on Lan Port1 on my present Home Hub 5 router and the Netgear I used prior to that. BTW I moved to HH5 before getting Infinity as it is a cheap deal for a dual band router and has good range. My PC (iMac) is connected to the SamKnows Bridge.
    I moved to Bt Infinity 2 on the 14th May and the Openreach engineer moved my Master socket to the extemsion that I have always used for my ADSL router: it was installed by BT about 5 years ago. 
    For the first few days all was well 75 Mbps down and 18 Mbps up logged by SamKnows  and also confirmed bt BT Wholesale Test.
    After that the SamKnows logging started to show big fluctuations throughout the day in the download speed: it does an hourly test adn the download was dropping to less than 40 Mbps but upload was only doent to 14 to 15Mbps.
    I called BT Tech Support and was asked to remove the Sam Knows bridge on Lan 1 and connect my PC direct into Lan port on HH5, shot down all wifi and powerline devices and range extneders and doa hard reset on my HH5. Did all this and was then asked to monitor the line for 24 hours using the BT Wholesale Test to see if the issue persisted.
    The issue persists logging shows the line fluctuating between 75.24Mbps Down and 27.34Mbps down. Here is the raw data so far.
    30/05/2014 21:42:00
    60.54
    15.94
    30/05/2014 21:53:00
    71.88
    15.86
    31/05/2014 22:33:00
    70.57
    16.29
    31/052014 08:30
    75.34
    15.94
    31/052014 09:30
    42.30
    14.29
    31/05/2014 10:00:00
    59.81
    16.00
    31/05/2014 12:30:00
    52.94
    16.44
    31/05/2014 12:45:00
    55.25
    15.76
    31/05/2014 13:00:00
    27.34
    11.94
    It seems to me that there must be excessive contention in the cabinet my line is on which is strange as the excahnge onlt opend for FTTC at the start of May.
    My question is what approach should I take when I go back to BT tech support on this issue this evening? Any suggestions much appreciated.
    And why do BT tech support not provide you with a ticket ID from their helpdesk system for tracking the issue or are the actions so far logged against my account and line number?
    Solved!
    Go to Solution.

    Thanks to Valthos for a very helpful and eloquent response: it must have taken quite a lot of thought and effort for them to write as a troll they  obviously have problems with both their basic literacy and interpersonal skills
    Anyway, your contract with BT is not one of "best effort" it provides a profile giving a minumum level of service. I believe that as taxpayers we have contributed something like £2.9 billion towards the construction of the Openreach FTTC/P infrastrucutre. IMHO £26.00 pcm is quite a reasonable amount to pay BT for a VDSL2 service and is in line with what other ISPs charge.
    After several sessions with BT support and having been asked  to reset and monitor the line using the BT Wholesale Performance Test the issue was chased to a fault in the line configuration at the exchage. After a change the line has now settled down to 75 Mbps downand 18Mbps up so I am a happy customer again. 
    Thanks again to Valthos for their critical insight and help with this issue. 

  • Feel like I'm stuck at the airport...

    ...and my flight has been delayed by 8 hours or more but, as they do, the airline will only show it in chunks of 30 minutes!
    I have given up trying to guess when my Infinity will ACTUALLY be available. As I posted before, every week it gets put back 6 days, I have monitored this on my and adjacent streets. Mine is currently due Oct 3 but from 2 other streets I am expecting this to go to the 14 Oct (my estimate) in a few days.
    I can totally undertand WHY things get delayed etc but I can NOT understand why they do this piecemeal unless it is to STOP people moving FROM BT or encourage people (like me) to come back.
    I am due to be switched back from O2 next week and my ONLY reason is Infinity as otherwise the BB was the same but I am now due to pay virtually double, which is OK for Infinity but NOT the same service. If this goes on longer than a month I will be extremely upset.
    Of course I will have no recourse because BT wont let you actually sign for Infinity until it's available, so I have now an 18 month contract for BB and can only hope my flight is not CANCELLED and I get out of this Airport soon
    Cheers
    Alan

    I cannot understand why people fall for the sales pitch to switch to BT before their local cabinet is ready to take orders as there is nothing to gain and plenty to loose. You are tied into a contract without a guarantee that you will get a fibre service on the date given or possibly ever.
    This is not a BT conspiracy more a BT group **bleep** up. BT Openreach do all the work on the cabinets and publish estimated dates - they are always estimates not promises and like any construction work estimates tend to change backwards. When a cabinet is ready they tell the retail companies who sell the service of whom BT Retail is one who then can accept orders. BT Retail have no extra information over their competitors and often seem the last to know (their databases take a while to update). Infinity is the BT Retail product other isps (eg Plus Net, Talk Talk etc) call their's something different and package it differently but they are all reselling the BT Openreach FTTC product which you cannot order until the local cabinet is fully working. 
    BT Retail sales staff have targets to meet so will push you to buy early and tie you in but why fall for it? If you get a MAC code and order when the cabinet is up and running you will be on the service as quickly.

  • Is there going to be an increase in speed any time...

    is there going to be an increase in speed any time soon ?

    Hi ghostzz
    As said in your previous post here (http://community.bt.com/t5/BT-Infinity/fttp-fttp-in-Edinburgh/m-p/1076720/highlight/true#M116509 ) there will probably be no improvement to the Openreach FTTC fibre infrastructure soon, though if ISPs take up the FTTPoD service and your exchange is FTTPoD enabled then you maybe able to pay for FTTP to be installed to your property. Though at the moment FTTPoD have not been taken up by any ISPs/CPs.
    Also the upto 76mbps is an UP To figure. This will be dependent on your line quality and how long your line is between your property and your FTTC dslam cabinet.
    There are also other limitation which can effect the sync and througput speed.
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  • Questions and answers on DLM, sync speed and real ...

    I was confused about some DML details and posted on a BE forum (https://avatar.bethere.co.uk/forum/viewtopic.php?t=43542) and got what was to me an incredibly helpful response from Tom (drsox).  I thought it would be of interest to some readers here so copy it below.  Once again, many thanks Tom.
    1) FTTC DLM applies only between the cabinet and the modem? 
    >> Yes, as there isn't any broadband / data signal going anywhere further down the line to the exchange if you are on FTTC! 
    2) What are the different parameters that apply on this hop? I know there is a current sync speed, a current snr, a target snr and an ip profile. Anything else? 
    >> The IP profile isn't really related to DLM, it just "follows" your sync rate. In the past the IP profile would take up to 3 days to "follow upwards", leaving you with a high sync and awful speeds! This has been changed now on 21cn and "RE-ppp"ing (rebooting the router) would force the IP Profile to update instantly. 
    DLM changes the SNR target. So where BE have hard coded / set SNR targets such as 3db, 6db, 9db, 12db etc.. They only change upon user request. BT use their DLM system where line instability or line error counts are collected and analysed, the SNR target and interleaving settings are then modified in increments to try and stabilise the line. 
    This image shows quite well how, over a 6 day period, BTs DLM noticed that my line fault was fixed. I didn't get the full speed back for a week. 
    3) Is the ip profile the same as the BRAS profile? 
    >>Yes 
    4) The DLM keeps statistics of errors etc to dynamically change the ip profile? 
    >> Changes the SNR target and interleaving for the line which will reduce the speed, and therefor the IP profile. 
    5) There is a general theory that the DLM is incapable of telling the difference between an error and a modem power cycle, so that power cycling can cause your profile to lower. Is that correct? 
    >> Yes, if you resync / power cycle your router multiple times in a day it is likely to try and "combat the line errors" and reduce your sync rate by increasing the SNR and / or interleaving on the line. 
    6) Can other connections and disconnections have the same effect? For example, if I reboot the router (where this is separate from the modem)? Or use the router interface to disconnect/reconnect the broadband? 
    >> PPP drops (router reboots while leaving the BT Openreach VDSL modem on and connected) won't affect DLM. The IP profile will match your sync rate upon reconnection of the PPP session. 
    7) If you have a low ip profile, does this mean that the sync is limited to the ip profile? 
    >> Other way around, if you have a low sync rate then the IP profile will match the sync rate. If you get an awful sync rate and the IP profile follows downwards, then you resync higher but the router "keeps the PPP session open" (which is possible if you resync quick enough) then your IP profile will stay low, even though the sync is high. Until you reboot your router or disconnect and reconnect the PPP session. 
    8) Can the sync rate change dynamically without a reconnection? If the ip profile gradually rises, will the cabinet force a resync to make sure the customer is actually getting the benefit of the higher ip profile, or must the user intervene with a modem resync? 
    >> See above - Sync can rise without affecting the IP Profile and the cabinet does not force a RE-PPP. 
    8) As I understand it, if the ip profile gets stupidly low for some reason, it can only be reset by BT wholesale? This will only be done after a visit to your home and a telephone call from the engineer to the BT wholesale central admin? 
    >> Mixed reports plus I don't think people understand the difference between sync speeds, line faults, the delay in DLM increasing sync after a fault.. I expect half the reports on the BT forum are not related to a stuck BRAS / IP profile. It is possible for the ISP or a BT engineer to reset the IP profile and possibly DLM training. 
    9) (8) This applies to all ISPs using BT Wholesale: some may be more willing to force this process to happen on behalf of their customers, but none can cirumvent it? 
    >> GEA providers (I believe) still have DLM but don't have BRAS / IP profiles unless they implement their own. 
    10) Who sets the snr? As I understand it, the customer has no direct control. Is this different for different ISPs? 
    >> Mixed information again, I believe that BT Wholesale give providers DLM override controls and SNR settings but none? (or few) ISPs use this system. 
    11) Real download/upload speeds are physically limited by the sync rate. They are also naturally limited by local limitations (such as wireless connections), server limitations, and congestion at various points along the route? Any more? The congestion along the route will vary bewteen ISPs as they use different routes with different capabilitues. 
    >> It is possible for BTs regional or local cabinet network to become congested. Supposedly the minimum speed you should achieve over the BT part of the network is 15mbps. ISPs such as Plusnet, BT etc.. then layer their own "discriminatory" traffic management on top of that (ie, slow down torrents etc.). 
    12) Real speeds are 'unnaturally' limited by throttling. This will also vary from ISP to ISP. Sky claims to have none, and BT none except for p2p. PlusNet and John Lewis have significant (but well explained)throttling. All the more expensive operators have none. 
    >> What you said  
    13) The ip profile affects the sync rate, and therefore actual speeds. Does the ip profile effect actual speeds in any other way? 
    >> Not quite right. The IP profile directly affects the speeds you can achieve but the sync rate affects the IP profile. The sync rate is determined by the stability and quality of your line and what DLM thinks it can cope with. 
    14) Many people (including AndrueC above) report real speeds from speedtests that are consistent and not close to the ip profile. These can't be explained by congestion (that would make them inconsistent). They can't be explained by server limitations, as they are consistent accross servers and the same servers give better speeds to other people. They can't be explained by local limitations, too many people claim sudden drops where the local conditions have not changed. They should not be able to be explained by throttling, as they as seen for many ISPs who do not throttle (I don't hold with the ISP lying theory here). What other factors are there that can explain these cases? 
    >> AndrueC and some other Sky customers have strange symptoms where speeds are around 20mbps rather than the full sync speed. The only logical explanation is either local cabinet congestion, contention between BT and the provider's network (not enough investment by the provider) or artificial traffic management on the providers side. It is also possible that the router that the customer has attached to their line is unsuitable for the higher speeds. For example an old ethernet router may only be able to cope with 20 or 30mbps! A friend of mine has a TP-Link ethernet router running Tomato on a BT 80mbps service but the TP-Link's CPU limitation causes his service to only perform at around 68mbps; he has a replacement router on order. (Obviously wifi will significantly reduce performance). 
    15) If you get a stupidly low ip profile, how long can you except it to take before it climbs to something more reasonable? (eg in my particular case, my profile is currently around 15Mb, and from BT service line tests should be around 58Mb). And the classic question, is it best to power cycle the modem (1) never, (2) occasionally (how often) or (3) never if at all possible? Mine did jump from 3.5Mb to 15Mb on one power cycle. Was that just coincidence? 
    >> My FTTC line took about 6 to 7 days to go from 40mbps to 80mbps after a line fault. It is possible that your 3.5mbps to 15mbps increase was the "re-ppp" affecting the BRAS profile and that your sync had slowly been increasing over time. 

    what a waste of money sending an engineer to "fix a fault" which does not exist.  Precisely.
    In my original BE post to which Tom so helpfully responded, I began:  It seems to me that DLM is an excellent concept with a highly flawed implementation, both technically and administratively.   I think that sending out an engineer to fix an obviously flawed profile is the main example of an adminastrative flaw.  I understand (I can't remember source, maybe Tom again) that they are sometimes relaxing the requirement for a visit before reset.
    Maybe the DLM system is too keen on stability vs speed.  This will keep complaints down from many people: most users won't notice speed too much as long as it is reasonable, but will be upset if their Skype calls and browsing are being interrupted too often.  
    However, it does lead to complaints from people who notice the drops after an incidence (as in your thread that has drawn lots of interest), or who only get 50 instead of 60.  The main technical flaw is that DLM can so easily be confused by drops from loss of power, too much modem recycling, etc, and then takes so long to recover.

  • How long does it take for Infinity DLM to increase...

    I have had a noisy line since I had infinity installed back in May this year, however as the fault was intermittent I didn't want to risk the possible £130 charge should they not find a fault. However the problem got progressively worse so I reported the fault, the engineer attended on the 19/09/14 and traced the problem to a faulty pair between the carriage way box (not the fibre cabinet) and the telegraph pole, he changed me to different pair which fixed the noise problem. I asked if he could do a DLM reset and he tried but advised that as he did not have the details for my connection he could not action the reset and to contact BT if the speeds do not increase. The fault has been marked fixed by BT as of 25/09/14
    The noise on the line and the resulting disconnections over the past ~5 months have meant that my connection has dropped from its initial 75mbps to sub 40mbps, it has been 11 days since the fix but I have not seen any improvements as yet. How long should I be waiting before the speeds improve and interleaving is disabled? For information the noise on the line is gone and I am around 100-150 meters from the fibre cabinet. My HH5 stats are below.
    1. Product name:
    BT Home Hub
    2. Serial number:
    3. Firmware version:
    Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated 13/08/14
    4. Board version:
    BT Hub 5A
    5. VDSL uptime:
    10 days, 23:37:48
    6. Data rate:
    11993 / 39997
    7. Maximum data rate:
    25394 / 88566
    8. Noise margin:
    13.3 / 14.0
    9. Line attenuation:
    0.0 / 16.2
    10. Signal attenuation:
    0.0 / 16.2
    Here are the results from the BT Wholesale Performance Test.
    Download speed achieved during the test was - 37.76 Mbps
     For your connection, the acceptable range of speeds is 40 Mbps-38.71 Mbps .
     Additional Information:
     IP Profile for your line is - 38.71 Mbps
    Upload speed achieved during the test was - 8.11Mbps
     Additional Information:
     Upstream Rate IP profile on your line is - 20 Mbps
    And here are the results from the availability checker.
    FTTC Range A (Clean)80 63.4 20 20
    FTTC Range B (Impacted)75.7 49.3 20 16.1
    How long do I need to wait before I should start seeing improvements and/or need to contact BT for an engineer to visit?
    I appreciate any advice given.

    It actually looks like your line has been capped to infinity one with the downstream been 39997, my mums on Sky fibre 40/10 package and that's what hers is like sometimes. Normally 39999, DLM can take 2-3 week in some cases but tbh if your fault has deffo been fixed you should have seen improvement after a few days, you will have to contact bt about this because if DLM is stuck the only way to get it unstuck is an engineer, I don't think they can reset your line at the exchange on fttc. You're getting less speed than the minimum you should get on an impacted Line so I would be asking for compensation, you're lucky that your max speed you can get is 88 meg the max I can get is 67 on a shorter line to the cabinet.

  • How do I find out when openreach are connecting my...

    Ok so I'm now at the point of tearing my hair out....
    After a fault with our line almost 2 years ago I got talking to the engineer. He told me that the board in the exchange that runs our broadband is set for fibre but would need all the other work to be completed for it to go live i.e cabinet and cables layed ect ect but I should expect something to happen within a year. So I waited and waited and waited. I contacted BT whom I am a customer about said roll out in my area. They told me they do not have that information at which time the Openreach website line checker said the exchange was enabled but nothing else.
    So I waited some more and last October/November (2014) we had sub contractors ask if they could store their plant machinery on our land.. we asked what they were doing to which they replied "digging the road and laying the tubeing for fibre cables for BT Openreach" . They also told us that they were there just to dig the road and NOT lay the cables.
    After the work was completed I still heard nothing but then later found out that BT Openreach had installed the cables but had not connected said cables to our serving cabinet. We spoke to another Openreach engineer working outside our property and asked what they were doing and we were told its was work being carried out for "OUR" fibre broadband. (the cables stop at our property and go nowhere else we are literally at the end of the line).
    So I have waited some more. Contacted BT (my ISP) and have been told yet again they do not know that information.
    Again waited some more then tried the line checker via the openreach website this time I was greeted with your serving cabinet is now connected and ready for fibre orders..... guess what BT have told us that that cabinet is indeed live but our property is not connected. 
    Openreach (via website) tell me to contact my ISP and when I do (BT) they tell me they do not have that information. I am being sent in very small circles. I know the line is there I know the excahnge is active and my serving cabinet is live but I can't contact anyone to find out when this work is going to be completed. Obviously OpenReach would be my best bet but there is no contact details for end user enquiries.
    Some one is sat in an office sending out workmen/engineers. How on earth do I find this out???????????
    Before I get any replies I know I have fibre line to the property I know my cabinet is live and I now my excahnge is ready. It seems that the only thing that needs doing is the line to the cabinet need connecting/activating. I want to know when or how I go about finding this out. I am on these forums as a last ditch attempt. I find it very frustrating that time and money as been invested closing and digging the road and setting everything up for it not to be completed and then make it impossible to find out why. 

    Hi sharkbiscuit79,
    Yes your cabinet 10 on the Crediton exchange has already been installed and linked with a FTTC DSLAM cabinet (making it able to provide FTTC fibre broadband) and has been Accepting FTTC orders since December 2013.  PCP10 (with it's DSLAM cabinet within 100meters of it) is locate on the junction of Commercial Road and the A3072.
    However by the looks of things your are just too far away to obtain a FTTC (VDSL2) connection, meaning FTTC fibre broadband is not available to you.
    Have a look at the Connecting Devon and Somerset Considerations (particularly the last paragraph) - http://www.connectingdevonandsomerset.co.uk/where-when-map-conditions/
    Your best bet is to talk to Connecting Devon and Somerset to see if there are any further plans to get a fibre based service to your area via https://www.connectingdevonandsomerset.co.uk/contact-us/ (as your area may not be inscope of any further deployment). Best give them your full address and landline number too as they can check if you are within a NGA area.
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  • Confused...is FTTC available in this area or not?

    Hi,
    I am just looking for some guidance. I will be moving to a new property in a couple of months, and it appears to be served by exchange DONCASTER NORTH, Cabinet 16 for broadband.
    Looking at the BT Broadband Availability Checker, it advises that:
    WBC ADSL 2+
    Up to 2
    1 to 3.5
    Available
    ADSL Max
    Up to 1.5
    1 to 2.5
    Available
    WBC Fixed Rate
    0.5
    Available
    Fixed Rate
    0.5
    Available
    However, the http://www.superfast-openreach.co.uk/ says that the Exchange is Accepting Orders for Superfast Broadband and the http://www.samknows.com/ website says FTTC is available, so I am assuming that the exchange must have been upgraded. 
    Does the Broadband Checker have old data? Or is it the case although the exchange has been upgraded, the cabinet has not? If the latter how do I find out when the cabinet will be upgraded?
    If superfast broadband is unavailable, then I may consider line bonding, but I would rather not get into a 12/24 month contract for that service - with independent suppliers - if BT will be offering FTTC shortly.
    Thanks
    Solved!
    Go to Solution.

    The cabinet has not been upgraded.
    Up until recently you could email Openreach and ask when your cabinet was likely to be upgraded however Openreach are no longer giving out that information, instead they are replying:-
    Thank you for your contact to us. Please note that we will not be responding to you by email but, would like to point you to the Openreach Superfast Fibre website and the FAQ section that will provide answers to the most commonly asked questions. It will also provide links to those service providers that sell fibre broadband at the moment so you can check if your particular line is enabled.
    http://www.superfast-openreach.co.uk/where-and-when/
    So in short, you just need to keep checking to see if your cabinet has been up graded.
    If you continue to use the checker it will tell when the cabinet is upgraded.
    http://www.dslchecker.bt.com/adsl/adslchecker.welcome

  • BT Make Final Adjustments for Faster FTTC Broadban...

    BTOpenreach has advised ISPreview.co.uk that their first trial of VDSL Vectoring (ITU-T G.993.5) technology, which could make even faster speeds available to more people on BT’s superfast (‘up to’ 80Mbps) hybrid-fibre (FTTC) broadband network, has been delayed a little but should now begin “within the next few weeks“.
    The trial was originally due to get underway by the end of July or early August 2013 (full trial details) but the initial preparations have apparently taken slightly longer than expected. The good news is that Openreach have now finished installing the necessary DSLAM hardware into six street cabinets around Barnet(London) and Braintree (Essex) in England.
    A Spokesperson for Openreach told ISPreview.co.uk:
    “We’re now making a number of final adjustments and running some further diagnostics to ensure customers on the trial continue to receive a good service before enabling the system. We expect this final work to be complete within the next few weeks.”
    VDSL Vectoring is not unlike the noise cancellation technology that you often find in some headphones and works to cancel out crosstalk (interference) on the “last mile” run of copper cable (i.e. between your local street cabinet and home), which could result in a noticeable speed boost.
    Some have speculated that Vectoring could push BT’s FTTC service beyond 100Mbps and, with the help of a few other tweaks, possibly as high as up to 200Mbps. But BT’s initial focus will not be on raising the headline rate and they instead envisage it being used to improve existing performance to more users; especially for those on longer lines where interference is a big problem.
    But in order to work effectively Openreach has to enable it on all of the lines that go into a street cabinet, which takes a little longer to deploy. Vectoring might also cause problems for Sub Loop Unbundled(SLU) providers, which could be using incompatible hardware and systems that would make Vectoring difficult to deploy in some areas. Ofcom are investigating this issue as part of their market reviews. On top of that the upgrade also attracts a moderate cost.
    In any case the initial trial, once it finally gets underway, is expected to run through September and probably most of November too. Officially Openreach has yet to decide whether or not Vectoring will be part of its long-term strategy but you’d be foolish to bet against it; especially with G.Fast (think of this as FTTC2) being mentioned for their long-term plans.

    That is a report from June so a bit out of date.

  • Infinity and Openreach

    Since I can't get an answer direct from BT, would anyone like to venture an opinion on this?
    I had Infinity installed yesterday. The Home Hub 5 came with a leaflet stating: "BT Home Hub 5 is a neat single box modem/router so you don't need a separate Openreach modem or two power sockets any more. And if an engineer's coming to set up your kit, they won't need to install an Openreach modem."
    Nevertheless, the engineer did indeed install an Openreach modem, which I didn't notice till he'd gone. Is this likely to be **bleep**-up, or might there be reasons to have both?

    Assuming the modem part of the HH5 is as good as the standalone Openreach modem, there is no point in having both.  They probably haven't told the engineers about the HH5 yet (especially the contractor engineers).
    I'd leave as is for a couple of days while the inital connection establishes itself.
    Then
    *  Do a speedtest at http://speedtest.btwholesale.com/, including the 'further diagnostics' part, and record the result.
    *  Power down the Openreach modem (don't just disconnect it ***),
    *  then disconnect it
    *  and plug the telephone connection into the appropriate socket on the HH5
    *  See how it goes.  Repeat the speedtest.  It may not allow you to do the full 'further diagnostics' part for half and hour or so.  Record the result, and post both sets of results.
    Very few people have HH5 yet, so help on the forum (including my post) may involve some guesswork.
    *** The reason for the power down first is that a disconnect can be mistaken by DLM as a line fault.  The power down should be seen as such and not upset DLM.

  • Why Do BT use DLM? it just drives some people away...

    Hello.Ive emailed a few depts in BT.When I first got broadband I ofc went with BT was told at the time I would get around 4.5mb
    It turned out to be a lot less than that (3mb)because of the distance from the Exchange my downstream atten runs around 47DB.Well for months the DLM was just going crackers I would lose sync and the speed just kept dropping.Even BT agreed the service was poor and allowed me to leave.I went with an ISP on LLU  (that doesnt use any form of DLM) with some tweaking 15 DB profile and Fast path.I currently Get 6.5 mb and a stable line.
    Surely If an LLU ISP can do this why cant BT?I do think BT should look into a protocol that allows itself a chance to do more tweaks add and remove things that sometimes just makes matters worse.
    the reason I posted here tonight now I've been a customer of BT for many years (phone) in this climate everyone wants to try and save some money so getting a bundled package makes sense if you can save.
    In this area (llanelli) its a big town.we dont even have 21CN. or even a hope of getting FTTC anytime soon.
    Solved!
    Go to Solution.

    Hi 21cn is due at your exchange end October 2011 hope that helps also he BT ip profiling system is currently being changed over to a system that gives 88.2% of connection speed and any change of sync causes the profile to change immediatley instead of the old 3/5dAy wait. Hope that info helps you
    If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

  • Number of infinity lines available in an FTTC cabi...

    I'm in a "rural" area with a reasonably high housing density. I would assume interest in moving from circa 200kb to many Mbit/s will be high. A small FTTC cabinet has been installed but not commissioned. Are there only a limited number of infinity lines available in such cabs or can capacity be incread to meet demand? I'd hate to miss out due to demand having been lucky enough to be in an area getting the service......

    IMHO I doubt Openreach would rush to install another larger Infinity cab to cope with any overflow... for a while if ever.
    So you want to get in first. If you've registered for Infinity don't just wait to be contacted.
    Check regularly using your Telephone Number (for most accurate result) in https://www.btwholesale.com/includes/adsl/main.html
    Or scroll down a bit to enter your number in the BT Infinity site.
    The checker showed my date had been moved to 30th Sept.... I kept checking as my cab was powered up and you could easily hear it's fans running.
    Then on 1st July the checker showed Infinity was available.-
    Please Click On any Text in Blue as that automatically links to information.
    PC (NDEGR)

  • Bit of Advice about FTTC cabinets

    Hi all,
          In my village we have all had FTTC cabinets installed, which is great however every cabinet has been powerd on and is accepting orders apart from the one that serves my property, it is cabinet no 19 and my post code is SG8 5JX.
    I checked the BT wholesale checker and still tells me can only get up to 1.5 meg.
    Anyone have any idea why it taking so long to switch on one cabinet or any more information on when it be turned on
    Thanks
    Paul D

    most likely reason is that all testing openreach do before the cab goes live has not yet been completed just a matter of waiting the wholesale checker will advise you of the date your cab should go live all you can do is keep checking
    If you want to say thanks for a helpful answer,please click on the Ratings star on the left-hand side If the reply answers your question then please mark as ’Mark as Accepted Solution’

  • How To Determine FTTC Modem Stats?

    As per subject really.
    FTTC modem ia a Huawei Echolife HG612.
    If I run the BB test (via the Help link at MyBT) then it gives me download and upload speeds, AND says the download connection (sync) is 39.9meg. However it does NOT advise on the Upload sync.
    All speed tests (whether wifi or wired) are showing an Upload speed of 4meg ... I would expect to be getting at least twice that. I was activated on Friday (12th) so I realise DLM is in operation, but I would have expected some movement by now. How often does DLM adjust the line profile?
    I'm off on holiday tomorrow, so I'll recheck the speedtest when I return. If it hasn't increased, how best do I get the profile reset?
    Thanks,
    Ian
    Thanks
    Ian
    http://www.siteguru.co.uk/be/ADSL2PlusForDummies.pdf - Having ADSL issues? Then read this PDF
    Please don't click the star beside my name - too many stars makes you look like a swot!

    sjtp wrote:
    That does tell you your IP Profile.  But it doesn't tell you whether it is the appropriate profile for your sync speed.  It often is, but there are various reasons for the IP Profile to get wrong, so a real sync speed is more useful, ...
    My sync speed is 39.9Mbps which I get from the standard BT speed test. In what way could this not be a 'real' sync speed? Can the BT Retail page give a misleading figure? I'm on Infinity 1 with the capped rate so it is exactly what I would expect. It looks like the OP is probably also on Infinity 1.
    The Down IP profile should be 96.79% of the sync speed, and at 38.72Mbps mine is exactly that.
    The Up IP profile should match the upload speed I'm paying for. On Infinity 1 I'm paying for 10Mbps and my Up IP profile is exactly that.
    So I was just suggesting that this is an easy way of checking what the OP seemed to really want to know without having to unlock the modem. He can check his Up IP profile using the BT Wholesale page. He seemed concerned that it wasn't set to 10 or 20 or whatever upload speed he is paying for.
    Agreed an unlocked modem would give lots of other information as well.

  • Connected to an FTTC enabled cabinet but unable to...

    My serving cabinet has recently been upgraded and is now FTTC enabled but I am still unable to recieve infinity even though a different property served by the same cabinet is.
    I called BT to ask if they could clarify if this was because I am too far away from the cabinet but the person I spoke to said to that my phone number is showing as no fibre available which means the cabinet I'm connected to can't have been upgraded. They couldn't explain why a different phone number connected to the same cabinet was able to receive fibre and said that distance from the cabinet is irrelevant; the test on my number would still come back as positive even if my cabinet was 100 miles away.
    Now I'm fairly confident that is untrue but they weren't having any of it.
    I was wondering if there is a way to confirm for sure that I'm too far away from the cabinet and will therefore never be able to get fibre?
    Thanks in advance.
    Steff

    So this is the reult for my line. Shows I am connected to cabinet 1 (on the BATHEASTON exchange):
    and this is the result on a different line connected to the same cabinet on the BATHEASTON exchange:
    I am fully assuming that the reason behind it is that I am too far away from the cabinet but just want a definite answer and any possible alternative or hope for the future! I've contacted Openreach on the form posted above, just waiting for a reply.

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