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Not getting expected sync speed from Eircom 24mbit?

  • 08-03-2010 05:53PM
    #1
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭


    Synced at 17mbit when I think my line is capable of slightly more.

    When speaking to eircom over the phone (I didn't personally order it), they said we would only get 17mbit out of our line which we accepted at the time thinking that they were trying to dull our expectations so we wouldn't be disappointed and complain that we weren't getting the full 24 (which I know we wouldn't get that close to) when we were finally changed over from 7.6mbit.

    Did some of the online ADSL2 line calculators before we got it and was supposedly capable of up to 20mbit based on my attenuation/noise margin.

    Anyways, synced at 17406kbps now and getting a pretty underwhelming 14.7mb/sec down (allbeit at peak time).

    Do eircom always sync your line slightly lower in order to guarantee reliability? Could my line be upped a little closer to 20mbit?

    The reason I ask is due to the eircom's interleaving saga. I was able to get my turned lower without any loss of speed or reliability because I don't have any reliability problems and I don't live very far away from my exchange and my downstream attenuation of 20 indicates that also.

    Using this: http://users.on.net/richard.moulynox/whirlpool/adsl2calculatorv1.xls

    And also a couple other of the sites like these to guage capable speeds:
    http://whirlpool.net.au/wiki/?tag=DSLAM_speeds
    http://www2.farina1.com/adsl/
    http://212.23.23.177/calc.htm

    Edit: Oh, I've also tried this on 2 different routers and have similar results but I think eircom have capped my max sync speed at 17406kpbs.


Comments

  • #2
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    Vertakill wrote: »
    Synced at 17mbit when I think my line is capable of slightly more.

    When speaking to eircom over the phone (I didn't personally order it), they said we would only get 17mbit out of our line which we accepted at the time thinking that they were trying to dull our expectations so we wouldn't be disappointed and complain that we weren't getting the full 24 (which I know we wouldn't get that close to) when we were finally changed over from 7.6mbit.

    Did some of the online ADSL2 line calculators before we got it and was supposedly capable of up to 20mbit based on my attenuation/noise margin.

    Anyways, synced at 17406kbps now and getting a pretty underwhelming 14.7mb/sec down (allbeit at peak time).

    Do eircom always sync your line slightly lower in order to guarantee reliability? Could my line be upped a little closer to 20mbit?

    The reason I ask is due to the eircom's interleaving saga. I was able to get my turned lower without any loss of speed or reliability because I don't have any reliability problems and I don't live very far away from my exchange and my downstream attenuation of 20 indicates that also.

    Using this: http://users.on.net/richard.moulynox/whirlpool/adsl2calculatorv1.xls

    And also a couple other of the sites like these to guage capable speeds:
    http://whirlpool.net.au/wiki/?tag=DSLAM_speeds
    http://www2.farina1.com/adsl/
    http://212.23.23.177/calc.htm

    Edit: Oh, I've also tried this on 2 different routers and have similar results but I think eircom have capped my max sync speed at 17406kpbs.

    You are correct, your line is on the 17 Mb/sec profile, so will never sync at a speed higher than this. When I first ordered this product, I too was put on the 17 Mb/sec profile even though I live very very close to the exchange. It's just eircom being cautious. I knew my line could do very close to the full 24 Mb/sec, so you need to call them and tell them to change you over to the 24 Mb/sec profile, they will *not* do this unless you have very good line attenuation and your SNR margin is also good. It would be helpful if you posted your line stats. My line now on the 24 Mb/sec profile syncs at 23426 kbps but with the 48:1 contention ratio, averages 17.5 Mb/sec on speed tests. You will never get more than this, maybe 18 Mb/sec if you synced at the full 24 Mb/sec. 14.7 Mb/sec was a good result for the 17 Mb/sec profile too. Nobody on this product will see speeds of anything like 20 Mb/sec even if you sync at the full 24 Mb/sec, just not possible. But for the price, I'm quite happy with what i'm getting now.


  • #3
    ronan675
    Registered Users, Registered Users 2 Posts: 23 ✭ronan675


    I think it might just be the line calculators that are not very accurate. I have a similar problem with my own line. Recently upgraded from 7.6mbit to the 24mb package.

    Before upgrading I ran my stats through one of the line calculators and it said the line should be capable of about 17-19mb however I am only syncing at 12204kbps.

    Not sure why but I have tried everything I can think of to fix it but I guess it's just the line. It's probable that eircoms profiles are more restrictive to insure the line stays reliable.


  • #4
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    ronan675 wrote: »
    I think it might just be the line calculators that are not very accurate. I have a similar problem with my own line. Recently upgraded from 7.6mbit to the 24mb package.

    Before upgrading I ran my stats through one of the line calculators and it said the line should be capable of about 17-19mb however I am only syncing at 12204kbps.

    Not sure why but I have tried everything I can think of to fix it but I guess it's just the line. It's probable that eircoms profiles are more restrictive to insure the line stays reliable.

    Ouch! Eircom have put you on the 12 Mb/sec profile, you might be able to get moved up to the 17 Mb/sec profile, post your line stats and we can see.


  • #5
    ronan675
    Registered Users, Registered Users 2 Posts: 23 ✭ronan675


    Sure. Line stats are as follows.
    DSL standard: ADSL2+
near-end bit rate: 12287 kbps
far-end bit rate: 670 kbps
near-end FEC error fast: 0
near-end FEC error interleaved: 17212
near-end CRC error fast: 0
near-end CRC error interleaved: 6
near-end HEC error fast: 0
near-end HEC error interleaved: 117
far-end FEC error fast: 0
far-end FEC error interleaved: 503
far-end CRC error fast: 0
far-end CRC error interleaved: 0
far-end HEC error fast: 0
far-end HEC error interleaved: 0
ADSL uptime   264:33:36
noise margin downstream: 14 db
output power upstream: 11 db 
attenuation downstream: 23 db
tone   0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  32- 63: 00 00 04 44 46 76 84 88 97 aa 98 ab ab bb cc cc 
tone  64- 95: ac cc cc 55 bc 9c cc cc c5 cc ca c6 b6 b6 a7 7a 
tone  96-127: bb bb bb ab ba 9b ab ab bb bb bb b0 bb ba bb ba 
tone 128-159: ba bb bb ba ba bb bb 9a bb bb bb bb bb ab bb aa 
tone 160-191: aa 99 a9 9a aa aa aa 9a aa aa aa 8a 9a a7 8a a9 
tone 192-223: 99 aa aa bb ab a9 aa aa 8a a9 aa a9 a9 aa aa a9 
tone 224-255: aa a9 a9 aa aa 99 a9 89 9a aa aa bb aa 9a bb ba 
tone 256-287: bb bb cb cb bb cb cb cc bc bb ab cc bb bb bb bb 
tone 288-319: a7 bb bb bb bb ba bb bb ab bb b9 bb ab aa ba ba 
tone 320-351: aa aa 99 9a aa 9a aa 9a 99 99 98 89 98 87 88 77 
tone 352-383: 76 77 77 76 67 54 55 66 55 61 31 11 00 41 14 41 
tone 384-415: 56 65 46 75 65 75 54 66 67 67 65 66 66 66 66 65 
tone 416-447: 65 66 66 56 66 66 56 76 76 66 66 66 54 45 56 44 
tone 448-479: 66 44 44 66 65 46 64 65 34 42 44 43 44 44 44 44 
tone 480-511: 44 14 14 43 13 30 40 41 13 00 00 00 00 11 40 00 
noise margin upstream: 19 db
output power downstream: 19 db 
attenuation upstream: 10 db
tone   0- 31: 00 00 00 02 56 79 9a aa aa bb bb ba aa a9 87 77 
tone  32- 63: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


  • #6
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    ronan675 wrote: »
    Sure. Line stats are as follows.
    DSL standard: ADSL2+
near-end bit rate: 12287 kbps
far-end bit rate: 670 kbps
near-end FEC error fast: 0
near-end FEC error interleaved: 17212
near-end CRC error fast: 0
near-end CRC error interleaved: 6
near-end HEC error fast: 0
near-end HEC error interleaved: 117
far-end FEC error fast: 0
far-end FEC error interleaved: 503
far-end CRC error fast: 0
far-end CRC error interleaved: 0
far-end HEC error fast: 0
far-end HEC error interleaved: 0
ADSL uptime   264:33:36
noise margin downstream: 14 db
output power upstream: 11 db 
attenuation downstream: 23 db
tone   0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  32- 63: 00 00 04 44 46 76 84 88 97 aa 98 ab ab bb cc cc 
tone  64- 95: ac cc cc 55 bc 9c cc cc c5 cc ca c6 b6 b6 a7 7a 
tone  96-127: bb bb bb ab ba 9b ab ab bb bb bb b0 bb ba bb ba 
tone 128-159: ba bb bb ba ba bb bb 9a bb bb bb bb bb ab bb aa 
tone 160-191: aa 99 a9 9a aa aa aa 9a aa aa aa 8a 9a a7 8a a9 
tone 192-223: 99 aa aa bb ab a9 aa aa 8a a9 aa a9 a9 aa aa a9 
tone 224-255: aa a9 a9 aa aa 99 a9 89 9a aa aa bb aa 9a bb ba 
tone 256-287: bb bb cb cb bb cb cb cc bc bb ab cc bb bb bb bb 
tone 288-319: a7 bb bb bb bb ba bb bb ab bb b9 bb ab aa ba ba 
tone 320-351: aa aa 99 9a aa 9a aa 9a 99 99 98 89 98 87 88 77 
tone 352-383: 76 77 77 76 67 54 55 66 55 61 31 11 00 41 14 41 
tone 384-415: 56 65 46 75 65 75 54 66 67 67 65 66 66 66 66 65 
tone 416-447: 65 66 66 56 66 66 56 76 76 66 66 66 54 45 56 44 
tone 448-479: 66 44 44 66 65 46 64 65 34 42 44 43 44 44 44 44 
tone 480-511: 44 14 14 43 13 30 40 41 13 00 00 00 00 11 40 00 
noise margin upstream: 19 db
output power downstream: 19 db 
attenuation upstream: 10 db
tone   0- 31: 00 00 00 02 56 79 9a aa aa bb bb ba aa a9 87 77 
tone  32- 63: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone  96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    Looks like it would be worth your while requesting the 17 Mb/sec profile. In the worst case scenario, if it makes your line unstable, they can change you back to the 12 Mb/sec profile anyway.


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  • #7
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    Cheers for that info douglasman.

    This cautious attitude seems common for them as it was the same story with the interleaving. It was turned on high for me despite the fact my line was perfectly capable of running with it lowered... but once I rang, they were very helpful and turned it down while I was on the phone to them.

    I'll ring tomorrow and ask them if they can put it up to 20mbit and see how it goes. I'm willing to try it out for a day or two even if there is a small chance of reliability issues if there's a possibility it could work perfectly with the extra 3mbit.
    ronan675 wrote: »
    I think it might just be the line calculators that are not very accurate. I have a similar problem with my own line. Recently upgraded from 7.6mbit to the 24mb package.

    Before upgrading I ran my stats through one of the line calculators and it said the line should be capable of about 17-19mb however I am only syncing at 12204kbps.

    Not sure why but I have tried everything I can think of to fix it but I guess it's just the line. It's probable that eircoms profiles are more restrictive to insure the line stays reliable.

    Yeah what you've said is exactly same scenario as me more or less. And douglasman has also says they've got profiles set up for each category of user which, I think, is really stupid.
    It's an easy way out but it's pretty poor service.
    I'm sure eircom are using the same or similar methods to guage your lines capabilities to the ones readily available online.
    It should be done by a case by case process rather than lumping everyone into widely different profiles. There's quite a difference between 12, 17, 20 and 24.

    Considering it took them 12 working days to upgrade me from my old eircom 7.6mbit BB to this... in that space of time, you'd expect them to get the exact speed my line is capable of reliably syncing at and give me that rather than put me into a category that might not even match.


  • #8
    Sponge Bob
    Banned (with Prison Access) Posts: 25,234 ✭✭✭✭Sponge Bob


    Vertakill wrote: »
    This cautious attitude seems common for them as it was the same story with the interleaving. It was turned on high for me despite the fact my line was perfectly capable of running with it lowered... but once I rang, they were very helpful and turned it down while I was on the phone to them.

    It would be very easy to set a cautious profile and then let you move it upwards gradually with a simple web page.

    If they are only actually giving a 12 and 17 mbit profile by default then they are offering an up to 17mbits package not up to 24mbits and you should complain about false advertising to the ASAI until they cop themselves on.


  • #9
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    Yeah, I think they're being a little underhanded with their tactics.

    If they're selling 'up to 24mbps', you would think they'd give you the max your line can handle up to 24. But if Joe Soap is told his line is only capable of 12 or 17, he most likely won't argue with it and will just accept that.

    I'm sure there's plenty of people that were attracted by the thoughts of 24 who have had to settle for a lot less.

    I suppose it could be considered cautious... or sly.
    It would be in eircom's interest to give you less bandwidth for the same price so it won't shock me if I'm able to go up to 20mb tomorrow.

    It's interesting because, when I had a pay per minute ISDN about 6-7 years ago, eircom told me my phone line wasn't capable of handling a flat rate broadband... which again, was an attempt to get more money for less bandwidth.


    With all that being said, we'll put it down as them being cautious, for now! :)


  • #10
    Sponge Bob
    Banned (with Prison Access) Posts: 25,234 ✭✭✭✭Sponge Bob


    At 20mbits max I would say cautious but if nobody...not even the 20% of lines that are 1km long or less...can get over 17mbits then that is misleading and dishonest advertising TBH.


  • #11
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    Wow I don't know what to say.

    Just off phone from eircom and I mentioned how I thought my line could hit 20mb and the CSR immediately said he agreed and he'd try it out for me.
    He said it could take up to 20 mins for it to change over and after asking me the customary "is there anything else I can help you with?", he interrupted himself and said it had already been upped to 20mb.

    Refreshed modem page about 2 seconds later while still on the phone and low and behold, straight up to 19879kbps without even needing to restart the modem.
    Obviously he said if, in the off chance, I have any problems, they can pop it back down to 17.

    So, it is was just eircom erring on the side of caution here and a 2 minute phone call was all it took to get it sorted.
    Ideally you wouldn't have to make the call but it was really painless so I can't fault them there.


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  • #12
    Board Senseless
    Closed Accounts Posts: 96 ✭✭Board Senseless


    Every calculation I've done has told me that I'm capable of over 19, yet they told me I'd only get 15. I'm actually getting almost 13.

    I'm going to call them tomorrow.


  • #13
    Snaga
    Registered Users, Registered Users 2 Posts: 1,562 ✭✭✭Snaga


    Most of the calculators don't take into account the SNR margin or else assume a specific value for it (which may not be accurate to your situation). The different profiles likely change the target SNR rather than the actual sync speed which is why you don't have a more 'round' value on your downstream sync speed.

    A higher target SNR margin leads to a more stable line but a lower sync speed. The other profiles likely lower the target SNR giving you a higher sync speed but making you more susceptible to noise on the line. Individual line conditions then dictate how low you can reasonably go. A sensible target SNR is 9/10db but very noisy lines can require up to 15db SNR to make the line stable. (Each db added to the target SNR is a db that cant be used for actual data transfer (i.e. lower sync speed).

    After that - remember to take into account the ~13% overhead that ATM and PPP have on an ADSL link. So take ~13% from your sync speed and you should get a figure close to the maximum IP throughput capable on your line.

    17.2Mbps downstream minus ~13% would equate to 14.9Mbps of IP, which is close to the figures your testing shows. On a 19Mbps line I'd expect you to see between 16 and 16.5Mbps of IP throughput downstream.


  • #14
    Board Senseless
    Closed Accounts Posts: 96 ✭✭Board Senseless


    I didn't even know Eircom had forums. I posted a thread there about it since I read another one where a guy had his profile changed by one of the mods. I was dreading calling since I'll be quoting stats and trying to sound like I know what I'm talking about and the person on the phone will most likely be doing the same. This way at least 1.5 of the 2 of us know what's what.

    By the way, my attenuation has changed from 24 to 22dB in the last week. I'm not sure if that was during the upgrade or before. Is that unusual?


  • #15
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    Cheers for clearing that up Snaga!

    Well Kahnyl, you're really just saying that according to your attenuation/noise margin, you think your line could be capable of a higher speed and could they bump you up to the next highest speed profile in order for you to test whether or not it's reliable or not.

    The only reason they will flat out reject the idea is if your line doesn't stand a chance of holding the increased sync speed.

    I've only spoken to the broadband tech support twice, once about interleaving and once about this issue and both times they knew exactly what I was talking about and both my issues were resolved before I had hung up the phone with them.


  • #16
    Board Senseless
    Closed Accounts Posts: 96 ✭✭Board Senseless


    I totally underestimated their support team. I just called and said I thought I might be capable of 19. He said I was capable of 22 but he'd put it on a 20 profile (probably the same as you). I'm not at home but he said it looks good and let them know if there are any problems when I get home.

    22 shocked me a little. I might have misheard but I thought it was curious how he said that 20 was the highest he could go. Maybe he just meant that my speed is not good enough for the next profile.

    Anyway, thanks for making this thread. If I hadn't seen it I would have just accepted 15Mbs.


  • #17
    Rebel021
    Registered Users, Registered Users 2 Posts: 943 ✭✭✭Rebel021


    The best I could get was 15mb but its syncing 13530 kbps /765 kbps
    Not very happy with 13.5mb
    Roll on NTL and fibre

    I must say the guy I spoke to On Broadband support line was very helpful


  • #18
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    That's great news Kahnyl. As douglasman says, they've got profiles for the speeds (the support agent verified this to me as well) so after 20 is 24 so if you're capable of 22, they'd have to round you down to 20.

    It's amazing how they initially thought 17 was acceptable?

    The sales team seem to be doing some really dumb stuff (they may be instructed to do this either) whereas the support team seem to be very helpful.


    Rebel, check out your line stats on some of the links I posted in my original post and see what your connection is capable of.

    If it's only syncing at 13530 then you're going to be getting close to 11'ishmbit download speeds which isn't a great improvement from their ADSL1 package.
    Find your downstream attenuation/noise margin on your router's website (default is 192.168.1.254) and then put that into the calculators I posted and see what you get.

    I would never have ordered ADSL2 without prior knowledge of what my line was capable of and it's clear that eircom's sales team are giving slightly underwhelming results.


  • #19
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    Rebel021 wrote: »
    The best I could get was 15mb but its syncing 13530 kbps /765 kbps
    Not very happy with 13.5mb
    Roll on NTL and fibre

    I must say the guy I spoke to On Broadband support line was very helpful

    Just regarding NTL and their "Fibre Power Broadband". This is just the marketing name for the product. The broadband uses the existing coax cable that the TV service and phone service uses, not to be confused with fiber optic cable which is not involved.


  • #20
    Rebel021
    Registered Users, Registered Users 2 Posts: 943 ✭✭✭Rebel021


    Vertakill wrote: »
    Rebel, check out your line stats on some of the links I posted in my original post and see what your connection is capable of.

    If it's only syncing at 13530 then you're going to be getting close to 11'ishmbit download speeds which isn't a great improvement from their ADSL1 package.
    Find your downstream attenuation/noise margin on your router's website (default is 192.168.1.254) and then put that into the calculators I posted and see what you get.

    I would never have ordered ADSL2 without prior knowledge of what my line was capable of and it's clear that eircom's sales team are giving slightly underwhelming results.

    Thanks

    Well these are my stats from my router

    Speed: 13530 kbps /765 kbps Line Attenuation (Down/Up): 33 dB /16 dB DSL Noise Margin: 4 dB /13 dB
    This what I get when I put them into the calculator
    [IMG][/img]resultsb.jpg

    Am I doing it right and does removing the red ring help as described here
    http://www.thinkbroadband.com/faq/sections/radsl.html#235


  • #21
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    Rebel021, your downstream noise margin is terrible, too low. The DSLAM at the exchange will not let your line sync any higher for this reason, so it wouldn't matter what higher profile eircom set you to, your line still would not sync any higher. You are also likely to experience disconnects and a generally unstable line with that noise margin.


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  • #22
    Rebel021
    Registered Users, Registered Users 2 Posts: 943 ✭✭✭Rebel021


    douglasman wrote: »
    Rebel021, your downstream noise margin is terrible, too low. The DSLAM at the exchange will not let your line sync any higher for this reason, so it wouldn't matter what higher profile eircom set you to, your line still would not sync any higher. You are also likely to experience disconnects and a generally unstable line with that noise margin.

    Is there anything I can get eircom to do about the noise margin?
    I have always noticed that the landline is quite noisy


  • #23
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    Rebel021 wrote: »
    Is there anything I can get eircom to do about the noise margin?
    I have always noticed that the landline is quite noisy

    There are a few things you can try. Plug out all phones, sky boxes and anything else thats plugged into the phone line, disconnect the filter too and plug the dsl modem directly into the phone line. See if there is much improvement. Then reconnect the filter and try to keep as little number of devices as possible connected to phone line. As for the noise on the phone, you can call 1901 and complain about that and see what they do.


  • #24
    dub45
    Moderators, Technology & Internet Moderators Posts: 12,454 Mod ✭✭✭✭dub45


    The trouble with all these guides is that there are only guides! Eveny line is unique and I believe that they are seriously misleading by not taking into account the snr which plays a huge role in performance.


  • #25
    Rebel021
    Registered Users, Registered Users 2 Posts: 943 ✭✭✭Rebel021


    I rang the faults department who confirmed there was a fault on the line and will have an engineer look at it.


  • #26
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    dub45 wrote: »
    The trouble with all these guides is that there are only guides! Eveny line is unique and I believe that they are seriously misleading by not taking into account the snr which plays a huge role in performance.

    Well, they're calculators, not guides. The formula for these calculators is sound and one of the sites I linked does take SNR into account and Rebel just pasted his results from it.
    His stats indicate that he should be getting a max of 15mbit which is exactly what eircom told him as well.

    My stats showed my line was capable of just over 20mbit and I'm synced at 19.89 now.

    I'll bet service providers use something very similar to these calculators.

    Btw Rebel, here's a site I remember looking at a while ago:
    http://www.kitz.co.uk/adsl/lowSNR.htm



    EDIT: Oh, that's great news then! Hopefully the SNR issue is related to the fault and you can get some improvements soon!


  • #27
    Vunderground
    Registered Users, Registered Users 2 Posts: 429 ✭✭Vunderground


    I've been ringing around as I've got the dreaded letter from Vodaphone...now the very nice Eircom girl having at first told me I didn't have broadband then went on to tell me, after they had run a test, that my line couldnt handle more than the 17MBs mentioned at the top of the thread. I told her what I was snycing at and she suggested I was reading it incorrectly....

    743972786.png

    hard to misinterpret this really!


  • #28
    Board Senseless
    Closed Accounts Posts: 96 ✭✭Board Senseless


    So I got home and tested the connection. TERRIBLE! Speedtests were all over the place in the range of 6-10Mbs. I also got plain disconnected once. So I called them back to just get put down a profile and this guy on the other end escalates it to a line fault. I'm telling him to just drop me a profile and he like, "No, you should be getting twenty. I'll send the army." I'm like, **** what has this turned into. So I get off the phone, and I snoop around the wiring. It turns out that what I thought was the main connection actually lead by a wire under some carpet to the actual main connection, which is covered. I believe our alarm is connected to this thing. Some joker took it upon himself to cover the damn connection so I couldn't connect directly to the wall even if I wanted.

    So I call back, and tell them there's an alarm, I think, attached to the line and I don't want an engineer calling out. Can I just lose the 20Mbs profile? She asks if I want to go back to fifteen and I ask oif there's something in the middle. She says seventeen, so now I've got that. The speed tests are all showing the same speed and I haven't been disconnected yet. She checked something and said that my line should only be capable of fifteen so the fact that it's at seventeen is pretty good.

    So overachieving lines are all around it seems.

    EDIT: And back to 15 I go. 17 was causing disconnects too. :( lol. I don't care anymore. At least I've got a stable connection again. The woman on the phone was great. "I want to go back to fifteen, seventeen's causing disconnects." "OK, that'll happen in the next few minutes". Done.

    EDIT 2: Definitely stable now. I'm downloading a GB file as I was doing earlier to test. About a minute in I would get completely disconnected. Now it's completely steady at 1.5M, whatever the hell that is.

    This was a learning experience.


  • #29
    Vertakill
    Registered Users, Registered Users 2 Posts: 2,262 ✭✭✭Vertakill


    Vunderground wrote: »
    I've been ringing around as I've got the dreaded letter from Vodaphone...now the very nice Eircom girl having at first told me I didn't have broadband then went on to tell me, after they had run a test, that my line couldnt handle more than the 17MBs mentioned at the top of the thread. I told her what I was snycing at and she suggested I was reading it incorrectly....

    743972786.png

    hard to misinterpret this really!

    Lol, yea the salesman said I'd only be able to achieve 17mb as well and I'm on the 20mb now.


    Sounds like a disaster Kahnyl! No chance of rejigging some wiring on your own end?


  • #30
    Rebel021
    Registered Users, Registered Users 2 Posts: 943 ✭✭✭Rebel021


    Well they came and fixed the rault on the line but to no avail.

    My line did go up in speed 13635 kbs and even when the tech guy uploaded the new Zyxel firmware V3.70(BOE.2)b1_20100119 | 01/19/2010 and upped me to 17mb
    from 15mb there was no change from what my router was syncing with previously.

    Would probably have caused disconnects if I stayed on 17mb and no point anyway without the sped improvement.

    I am about 1.5 km from the exchange but I expected a better speed.

    Roll on Ntl and 30mb fibre


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  • #31
    douglasman
    Registered Users, Registered Users 2 Posts: 241 ✭✭douglasman


    Rebel021 wrote: »
    Well they came and fixed the rault on the line but to no avail.

    My line did go up in speed 13635 kbs and even when the tech guy uploaded the new Zyxel firmware V3.70(BOE.2)b1_20100119 | 01/19/2010 and upped me to 17mb
    from 15mb there was no change from what my router was syncing with previously.

    Would probably have caused disconnects if I stayed on 17mb and no point anyway without the sped improvement.

    I am about 1.5 km from the exchange but I expected a better speed.

    Roll on Ntl and 30mb fibre

    Regarding NTL 30mb, you might want to read the following thread

    http://www.boards.ie/vbulletin/showthread.php?t=2055764097

    and also bear in mind that it's just using the coaxial tv cable, "fibre broadband" is just the marketing name, it does not use fiber optic cable.


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