Splitter Installation

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proxx

5 posts

Wannabe Geek

#73616 17-Dec-2010 16:23

Hi there,

I've been having painfully slow speeds on my DSL2+ - speedtests are showing it dropping down to 1mbit, 0.7 upload during peak hours. I've started investigating, and have ruled out pretty much every component except for the wiring in my house. There are 6 telephone sockets (one in each room), and at least 1, if not more, wires that curl off somewhere and do not terminate to anything.

I'm reasonably certain (or perhaps hopeful?) that getting a splitter installed should help me with these issues. Does that sound like a fair assumption?

I've just spoken to my ISP (Telstra), and they advised they wont send a technician out, because from their end, it says I'm connected at 12mbit, despite the fact while talking to them, I'm speed testing between 6 and 7.

I've ruled the PC out (used 3 different PC's in isolation from the others, also using 3 different network cables to rule that out as well), have used 2 different routers, and have done a complete isolation test all with the same results.

The only other relevant bit of information that comes to mind is that im 800metres from the cabinet.

Does it sound like a splitter is what I'm after to solve my woes? If so, does anyone know of a reccomended person/company to go to in the Wellington region? I've red that there may be some users on this forum who specialise in this area and I'd rather chuck some work there way than to a complete random :)

Thanks,
- Charlie

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#418562 17-Dec-2010 16:59

Hi, can you log into your modem and show the DSL stats page, it will tell us the line attenuation, noise margin, sync speed etc.

A splitter may help, then again if Telstra say you are syncing at 12Mb/s yet you are only getting 1Mb/s then one would be suggesting Telstra have an issue not your line or connection.

A splitter is the ideal setup, it negates all house wiring and ensures you get the best out of the connection that is delivered to your door. That's however does not preclude the fact that depending on house wiring you may already be getting as good as it gets, but without doing it you will never know.

Normally a central filter can make a significant difference, PM me if you are interested in one, I work in the Welly district.

Cyril

Ragnor

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#418574 17-Dec-2010 17:07

I would definitely get a splitter installed if you have dodgy old wiring and 6 jacks.

You should see better stability in the line rate and at 800m from a cabinet I reckon you can should get a higher line rate than 12Mbit once the DSL line is isolated by the splitter.

For real world throughput, well depends on many factors. Rresidential internet is a shared network best effort service (think motorway, peak time congestion) so it can't really be promised your speed tests will improve, it depends to where (national/international) and when.

cyril7

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#418576 17-Dec-2010 17:09

Yes agreed, at 800m you should have sync rates around 15Mb/s if not more, not 12.

Cheers
Cyril

Oh and seasons greetings Ragnor.

Behodar

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#418585 17-Dec-2010 17:32

proxx: I've been having painfully slow speeds on my DSL2+ - speedtests are showing it dropping down to 1mbit, 0.7 upload during peak hours.

How long has this been happening for? For about two weeks I've been experiencing low speeds and very high latency between approx 7-10 pm. I've logged it with TelstraClear and they've admitted that it's definitely a fault, and I'm wondering whether you're running into the same problem.

Here's an example of what I'm getting. Are you getting high latency too, or just low throughput?

traceroute to clear.net.nz (203.97.37.85), 64 hops max, 52 byte packets
1 10.0.1.1 (10.0.1.1) 0.587 ms 0.384 ms 0.538 ms
2 192.168.1.1 (192.168.1.1) 1.365 ms 1.250 ms 1.182 ms
3 lo0.internet.ivpn.pe24.telstraclear.net (218.101.61.122) 1072.580 ms 1001.866 ms 925.259 ms
4 cs2-e3-5-acld.auckland.clix.net.nz (203.167.243.210) 905.964 ms 742.294 ms 805.267 ms
5 front2-clix.clear.net.nz (203.167.243.213) 813.017 ms 855.807 ms 1028.166 ms
6 * * *

proxx

5 posts

Wannabe Geek

#418591 17-Dec-2010 17:53

Hi, apologies for not including it earlier, was posting from work. Am home now, router stats are as follows:

status

As you can see, its sync'd up at 12, which I believe is all TCL are saying when they say my speed is currently 12. Whilst it may be synced up at 12, as soon as its under load, it starts to drop. I was not under the impression when she was checking my speed from her end that she was putting my connection under any kind of load.

My speed test right now shows as this however:

This will get progressively worse through the night.

Behodar, I [i]think[/i] my latency is fine. Certainly in the speedtest it remains somewhere between 30 and 50.
I couldn't tell you how long its been going for, as up until recently I've only been browsing, and wouldnt have noticed. Its only recently that I've started playing WoW again, and I notice because once I try to raid (25 people all doing several things at once, against many creatures at once results in a fair bit of information trying to be sent and received by me) - it starts to get to be much, and then it just disconnects me from in game (NB: the dsl connection isnt disconnecting).

Here's my tracert to the same address you tested, i'll do another later tonight during peak times.

C:\Documents and Settings\Rebecca>tracert clear.net.nz

Tracing route to clear.net.nz [203.97.37.85]
over a maximum of 30 hops:

  1 <1 ms <1 ms <1 ms 192.168.0.1
  2 34 ms 33 ms 33 ms lo0.internet.ivpn.pe25.telstraclear.net [218.101
.61.124]
  3 43 ms 44 ms 43 ms cs2-e3-5-acld.auckland.clix.net.nz [203.167.243.
210]
  4 44 ms 43 ms 44 ms front2-clix.clear.net.nz [203.167.243.213]
  5 44 ms 44 ms 43 ms telstraclearunmetered.co.nz [203.97.37.85]

Trace complete.

proxx

5 posts

Wannabe Geek

#418594 17-Dec-2010 17:59

Also I have tried throwing the router into pretty much every other possible configuration mode (adsl/adsl2/adsl2+ etc) - no positive results.

Behodar

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#418598 17-Dec-2010 18:09

OK, you're certainly not having the same latency issue as I am then.

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proxx

5 posts

Wannabe Geek

#418603 17-Dec-2010 18:17

heres another statistics shot with a bit more info, from a different router.

stats

I think I definitely need to go ahead with getting a splitter installed. It MAY not help at all, but until I do, I'll never know. I'm pretty desperate at this stage, I have no other options as far as I know. I looked into VDSL2+ - it seems my house in tawa is an island of pink in a sea of green that is the rest of tawa (meaning we cant get vdsl2), ours seems to be the only cabinet in the suburb that isnt getting vdsl2+ enabled any time soon.

cyril7

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#418606 17-Dec-2010 18:43

Hi, 18dB and only 12.7Mb/s sync, this is not good, I would expect much better, so house wiring and line optimisation is a good plan. However as previously pointed out, the fact that you are only getttin 5Mb/s or even 1Mb/s download from speedtest (I assume from the Auckland server, ie xnet dont use citylink) indicates TCL have some issues that you cannot fix no matter how hard you try.

PM me if you want a filter install, I have very keen prices and can probably squeeze in before santa appears.

Cyril

proxx

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Wannabe Geek

#418613 17-Dec-2010 18:56

I think I may also have some serious routing issues. These speed tests are all taken right now, within a minute of each other.

Wellington Server:

Auckland Server:
aklnd

Christchurch Server:
chch

Also, im very keen on taking you up on that filter, forgive my ignorance (my area of speciality when it comes to IT is more around virtualisation and servers :P!) - is it effectively the same thing as a splitter?

cyril7

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#418616 17-Dec-2010 19:00

Hi, yes there is only one approved central filter (well two but one is only ADSL2+ rated and the other VDSL2, I only do the latter now).

The slow speed to the citylink(wellington) server relates to the peering that TCL donot partake in, the other two are more consistant, but a 12Mb/s sync rate should achieve 10Mb/s TCP throughput which is what the ChCh server shows, so optimise any line condition and so will the TCP throughput.

Cyril

Behodar

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#418618 17-Dec-2010 19:03

TCL support has previously advised me to use the Auckland WxC server for the most accurate tests.

jimjim

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#424963 7-Jan-2011 13:34

Hi Guys I have had some problems with my DSL disconnecting at random times (and very often) and from reading the discussions on this forum relating to DSL performance have decided that it was time to get a central splitter which seems to have everyone's approval here.

My house has more than 10 jackpoints and 5 of them are in use at any one time (all on single level). My internet was perfectly fine until we built an extension to the house which added another 5-6 jackpoints.

I have booked a central splitter installation from Telecom (Chorus) for a whopping $298 for the installation. Can anyone let me know if there is a cheaper and equally reliable option than this? I live in Auckland (suburb of Manukau).

cheers for your help

Jim

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#425085 8-Jan-2011 02:10

Chorus has a standard price across the board to make things "simple" and even out small and large jobs.. $298 is cheap if you if you have a large complex job and it's a far away call out for them. It's expensive if you have a simple job and good local tradesman (or can DIY).

Basically you can get a master filter/splitter for $20-$30 from: electrical wholesalers, online computer stores or trademe.

eg: Dynamix XDSL-Master
http://dynamix.co.nz/index.html?do=viewproduct&code=XDSL-MASTER&ID=4107806

Then it's really just time and materials to install it.

I should be quite a bit cheaper than $290ish from a local tradesman.

It's not too hard to DIY if you understand or are willing to learn the basics of telephone wiring but may not result is as professional of job.

sbiddle

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#425104 8-Jan-2011 08:01

jimjim: Hi Guys I have had some problems with my DSL disconnecting at random times (and very often) and from reading the discussions on this forum relating to DSL performance have decided that it was time to get a central splitter which seems to have everyone's approval here.

My house has more than 10 jackpoints and 5 of them are in use at any one time (all on single level). My internet was perfectly fine until we built an extension to the house which added another 5-6 jackpoints.

I have booked a central splitter installation from Telecom (Chorus) for a whopping $298 for the installation. Can anyone let me know if there is a cheaper and equally reliable option than this? I live in Auckland (suburb of Manukau).

cheers for your help

Jim

Any more than 5 jackpoints and you're just asking for a massive hit on xDSL performance.

I thought the Chorus install fee was $199?

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