Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




827 posts

Ultimate Geek
+1 received by user: 113


Topic # 114593 24-Feb-2013 22:40
Send private message

Hi,

Just wondering if anyone can give me some advice as to why my Telecom connection has slowly gotten worse.  It's not bad but it's not as good as it used to be.

I currently sync at 0.841Mb up and 12.647Mb down.  When I first moved into my house several years ago it would sync at 18Mb down and around 1.1Mb up but over the years this has slowly decreased and is now 33% slower.

There was a chorus tech working hooking up our neighbours house with BB today so I asked him what he expected I should be syncing at and he said close to maximum for ADLS2+ because the cabinet is only 50 metres away.

I haven't changed any hardware in my setup and am still running the same Speedtouch 536v6 that I always have (it's rock solid).

I have listed my link info below.  Any help or advice would be appreciated.  I'm thinking of switching to VDSL2 (with Snap) for better upstream but would like to diagnose this problem first.  

Thanks in advance for any help received.

DSL Type: G.992.5 annex A

Bandwidth (Up/Down) [kbps/kbps]: 841 / 12.647

Output Power (Up/Down) [dBm]: 12,5 / 19,0

Line Attenuation (Up/Down) [dB]: 9,0 / 11,0

SN Margin (Up/Down) [dB]: 16,5 / 15,5

Vendor ID (Local/Remote): TMMB / BDCM

Loss of Framing (Local/Remote): 0 / 0

Loss of Signal (Local/Remote): 0 / 0

Loss of Power (Local/Remote): 0 / 0

Loss of Link (Remote): 0

Error Seconds (Local/Remote): 0 / 0

FEC Errors (Up/Down): 0 / 0

CRC Errors (Up/Down): 0 / 0

HEC Errors (Up/Down): 128 / 0

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2 | 3
19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  Reply # 768653 24-Feb-2013 22:43
Send private message

Have you done an isolation test?

Do you have a master filter installed?



827 posts

Ultimate Geek
+1 received by user: 113


  Reply # 768676 25-Feb-2013 06:13
Send private message

johnr: Have you done an isolation test?

Do you have a master filter installed?


Yup did the isolation test as per the geekzone site and no noticeable differnce.  

No I don't have a master filter.

Thanks.

 
 
 
 


25594 posts

Uber Geek
+1 received by user: 5371

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 768678 25-Feb-2013 06:24
Send private message

If you are a genuine 50m away your attenuation figures are very high.

Was your isolation test merely unplugging all devices, or physically disconnecting all wiring and plugging the modem directly into the demarc?

If the issue is your home wiring (and statistically there is a high chance it would be) a master filter is the fix.


2186 posts

Uber Geek
+1 received by user: 240

Trusted

  Reply # 768679 25-Feb-2013 06:41
Send private message

And if you are considering jumping on VDSL, you would need to get a master filter installed.






827 posts

Ultimate Geek
+1 received by user: 113


  Reply # 768680 25-Feb-2013 06:49
Send private message

sbiddle: If you are a genuine 50m away your attenuation figures are very high.

Was your isolation test merely unplugging all devices, or physically disconnecting all wiring and plugging the modem directly into the demarc?

If the issue is your home wiring (and statistically there is a high chance it would be) a master filter is the fix.



I really am 50m away.

My isolation test consisted of unplugging the only other device in the house, that being my phone.



827 posts

Ultimate Geek
+1 received by user: 113


  Reply # 768681 25-Feb-2013 06:54
Send private message

sonyxperiageek: And if you are considering jumping on VDSL, you would need to get a master filter installed.


Yup I realise that, just trying to figure out why I've experienced a 33% drop in sync rate with no change in hardware.

6039 posts

Uber Geek
+1 received by user: 158

Trusted

  Reply # 768683 25-Feb-2013 07:33
Send private message

Hi, either your not 50m of cable away (ie cable runs up other side of the street for 700m and back down to you) or you have something loading your line.

Your noise margin is 15dB, so my guess if for whatever reason you have been placed on a very conservative profile. I still would recommend a full isolation test, ie disconnecting all wiring at the demarc and connecting to the inbound line with no other wiring attached.

Cyril

19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  Reply # 768685 25-Feb-2013 07:34
Send private message

Hope your modem is not plugged into an ext lead

1948 posts

Uber Geek
+1 received by user: 469
Inactive user


  Reply # 768703 25-Feb-2013 08:04
Send private message

If email me your home line number to pl at telecom.co.nz and I will run a line test.

99.9% sure I will come back and say you need a master filter.



827 posts

Ultimate Geek
+1 received by user: 113


  Reply # 768738 25-Feb-2013 09:50
Send private message

Thanks for all the replies.

Yup I agree a master filter would be the best option just strange how the connection has deteriorated over the last few years.  I see Snap will install a master splitter for $400 if I sign up for VDSL2 - is that a reasonable price or would a sparky be cheaper?

plambrechtsen I have sent you an email to your telecom address - thanks for your help.



19282 posts

Uber Geek
+1 received by user: 2600
Inactive user


  Reply # 768739 25-Feb-2013 09:51
Send private message

Not strange at all the quality of the wiring does degrade just with time

195 posts

Master Geek
+1 received by user: 5


  Reply # 768749 25-Feb-2013 10:13
Send private message

New Cat 5 from the demarc should solve it. Unless its the cable between you and the cabinet. These guys get a bit excited about a master splitter but if you only have a couple of jacks and it was fine this won't solve anything.

6039 posts

Uber Geek
+1 received by user: 158

Trusted

  Reply # 768751 25-Feb-2013 10:16
Send private message

fellaintga: New Cat 5 from the demarc should solve it. Unless its the cable between you and the cabinet. These guys get a bit excited about a master splitter but if you only have a couple of jacks and it was fine this won't solve anything.


Hi, it will if you are putting the modem on a stub rather than the end of the line, all depends how and where its split. The effects can be anywhere from minor to 100% or more of extra sync rate. If your after VDSL2 its will have a massive impact.

Cyril

xpd

8293 posts

Uber Geek
+1 received by user: 1090

Mod Emeritus
Trusted
Subscriber

  Reply # 768753 25-Feb-2013 10:18
Send private message

BigMal:  see Snap will install a master splitter for $400 if I sign up for VDSL2 - is that a reasonable price or would a sparky be cheaper?


Think the $400 will include the splitter/filter install but it will be for something else as well considering a ADSL/VDSL2 filter is only $20+........





XPD^ / @DemiseNZ / Gavin

 

Internet : Voyager (VDSL)         Mobile : 2Degrees

 

Data Backed up by Backblaze

 

xpd.co.nz


25594 posts

Uber Geek
+1 received by user: 5371

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 768755 25-Feb-2013 10:20
Send private message

fellaintga: New Cat 5 from the demarc should solve it. Unless its the cable between you and the cabinet. These guys get a bit excited about a master splitter but if you only have a couple of jacks and it was fine this won't solve anything.


This scenario here is a very classic example of a probable internal wiring fault - multiple jackpoints with a connection that degrades over time which is quite often caused by corrosion in wiring or a jack.

Even if you have a "couple" of jacks a master filter is the only way of eliminating line stubs created by multiple jackpoints. A 2-3 jack install with no wiring fault may not see much more than 5 - 10% increase with a master filter, but with VDSL2 the extra jackpoints can easily shave a good 10 - 15Mbps off yor sync speed.



 1 | 2 | 3
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Air New Zealand experiments with blockchain technology
Posted 23-Nov-2017 15:39


Symantec selects Amazon Web Services to deliver cloud security
Posted 23-Nov-2017 10:40


New Zealand Ministry of Education chooses Unisys for cloud-based education resourcing management system
Posted 22-Nov-2017 22:00


Business analytics software powers profits for NZ wine producers
Posted 22-Nov-2017 21:52


Pyrios strikes up alliance with Microsoft integrator UC Logiq
Posted 22-Nov-2017 21:51


The New Zealand IT services ecosystem - it's all digital down here
Posted 22-Nov-2017 21:49


Volvo to supply tens of thousands of autonomous drive compatible cars to Uber
Posted 22-Nov-2017 21:46


From small to medium and beyond: Navigating the ERP battlefield
Posted 21-Nov-2017 21:12


Business owners: ERP software selection starts (and finishes) with you
Posted 21-Nov-2017 21:11


Why I'm not an early adopter
Posted 21-Nov-2017 10:39


Netatmo launches smart home products in New Zealand
Posted 20-Nov-2017 20:06


Huawei Mate 10: Punchy, long battery life, artificial intelligence
Posted 20-Nov-2017 16:30


Propel launch Disney Star Wars Laser Battle Drones
Posted 19-Nov-2017 21:26


UFB killer app: Speed
Posted 17-Nov-2017 17:01


The case for RSS — MacSparky
Posted 13-Nov-2017 14:35



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.