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.




3267 posts

Uber Geek
+1 received by user: 77

Trusted

Topic # 146896 2-Jun-2014 09:41
Send private message

A few weeks ago I've noticed our internet has slowed down.  Did not take much notice as it was peak time, but the next day it was still slow.  Turned out the sync rate dropped from almost 9Mbps (where it had been for years) to 1.5Mbps.  Downstream noise margin was also around 40dB instead of 12dB.  Reboot modem and all back to normal.  Five days later the same thing happened, this time I just unplug the phone line for a few seconds and upon resync all was back to normal.  A few days later similar issue but all stats including noise margin are normal except for sync rate is just over 3Mbps, sometimes 2.5Mbps, and noise margin is jumpy (sometimes close to 0dB).

Tried the usual including a new power supply, no difference.  House is 2 years old, new wiring to the pole (then overhead to cross the road).  A couple of months ago kids damaged the main cable coming down the side of the pole (on the other side of the road), Chorus spent a few hours splicing and sealing, still looks fine.  All that is remaining is to try a different modem (which I might do sometime today) before doing a help desk support call.  Last night our smartest phone reported an unstable internet connection.  Any suggestions?  I'm using an SRP527W, been very good for a few years.




You can never have enough Volvos!


Create new topic
5376 posts

Uber Geek
+1 received by user: 227

Trusted
Geekzone
Subscriber

  Reply # 1057796 2-Jun-2014 09:41
Send private message

Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.

 



 

If you are posting regarding DSL speeds please check that

 



 

- you have reset your modem and router

 


 

- your PC (or other PCs in your LAN) is not downloading large files when you are testing

 

- you are not being throttled by your ISP due to going over the monthly cap

 


 

- your tests are always done on an ethernet connection to the router - do not use wireless for testing

 


 

- you read this topic and follow the instructions there.

 



 

Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:

 



 

- Your ISP and plan

 


 

- Type of connection (ADSL, ADSL2, VDSL)

 


 

- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)

 


 

- Your general location (or street)

 


 

- If you are rural or urban

 


 

- If you know your connection is to an exchange, cabinet or conklin

 


 

- If your connection is to a ULL or wholesale service

 


 

- If you have done an isolation test as per the link above

 



 

Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.

 



 

A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.

 



 

I recommend you read these two blog posts:

 



 

- Is your premises phone wiring impacting your broadband performance? (very technical)

 


 

- Are you receiving a substandard ULL ADSL2+ connection from your ISP?




I am the Geekzone Robot and I am here to help. I am from the Internet. I do not interact. Do not expect other replies from me.



334 posts

Ultimate Geek
+1 received by user: 3

Trusted
WorldxChange

  Reply # 1057808 2-Jun-2014 09:52
Send private message

Hi Niel, 

Couple of things I'd recommend, replacing the cable from the SRP to the wall jack if you haven't done that previously (removing any filters/extensions etc) & also seeing if the same thing is happening in a different jack point.

If both of those things continue after the above I'd be 99.9% sure there is a line issue somewhere, possible jumper etc which needs to be repaired by a line tech.

I've logged a line anaylser and a preliminary fault with Chorus as it appears you may have done the above.  

Thanks 
Cameron 








 
 
 
 




3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 1057813 2-Jun-2014 10:12
Send private message

Thanks Cameronn.  I have only one jack dedicated for the modem/server/router/etc. in a safe location.  I've cycled the patch cable a few times to see if that wipes clear any possible oxidation.  Will swap out the modem/cable later today to see what happens, but not very hopeful.  It is odd that it went to such a low sync rate, then somewhat higher sync rate but unstable noise margin.




You can never have enough Volvos!


334 posts

Ultimate Geek
+1 received by user: 3

Trusted
WorldxChange

  Reply # 1057815 2-Jun-2014 10:18
Send private message

If it's a full installation and you've checked those things,  I'm 100% sure it will be a line issue.  Fault is underway I'm guessing a tech will definitely be required to fully resolve it - you should get a txt when we get a commit time from Chorus. 

Looks like someone will be out there today to resolve it :) 










3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 1057941 2-Jun-2014 13:37
Send private message

Thanks, got the text a couple hours ago to say a tech will check it out by 7:00 tonight, on Queen's birthday.  Just checked the stats now, it is back to normal.  Presumably it got fixed, unless the issue went away.  Thanks either way, you guys are great ;-).




You can never have enough Volvos!




3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 1057950 2-Jun-2014 13:44
Send private message

Ah, it is going up and down a few times, sometimes good, sometimes bad, so they are working on it right now.




You can never have enough Volvos!




3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 1057961 2-Jun-2014 14:05
Send private message

Tech just left, and I spoke with him Afrikaans all the way ;-).  He was cycling the plug at the exchange, but found no issues.  Checked the demarcation point, line sounds clean, crimped the wires again and speed came up 9.6Mbps which is better than it's been in a long time.  So looks like the 2 year old crimps (actually 2x crimps per wire) might have been failing.




You can never have enough Volvos!


3594 posts

Uber Geek
+1 received by user: 79

Trusted
WorldxChange

  Reply # 1058315 3-Jun-2014 06:58
Send private message

Good to hear its fixed Niel.. Nice work Cam




Yes I am a employee of WxC (My Profile) ... but I do have my own opinions as well Wink

             

https://www.facebook.com/wxccommunications

334 posts

Ultimate Geek
+1 received by user: 3

Trusted
WorldxChange

  Reply # 1058346 3-Jun-2014 08:22
Send private message

Good to see it resolved, give us a shout if it starts playing up again :) 







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 »

Vocus New Zealand on the block as Aussies bail
Posted 23-Oct-2017 17:06


Vodafone TV — television in the cloud
Posted 17-Oct-2017 19:29


Nokia 8 review: Classy midrange pure Android phone
Posted 16-Oct-2017 07:27


Why carriers might want to embrace Commerce Commission study, MVNOs
Posted 13-Oct-2017 09:42


Fitbit launches Ionic, its health and fitness smartwatch
Posted 12-Oct-2017 15:52


Xero launches machine learning automation to improve coding accuracy for small businesses
Posted 12-Oct-2017 15:45


Bank of New Zealand uses Intel AI to detect financial crime
Posted 12-Oct-2017 15:39


Sony launches Xperia XZ1, a smartphone with real-time 3D capture
Posted 11-Oct-2017 10:26


Notes on Nokia’s phone comeback
Posted 10-Oct-2017 10:06


Air New Zealand begins Inflight Wi-Fi rollout
Posted 9-Oct-2017 20:16


The latest mobile phones in perspective
Posted 9-Oct-2017 18:34


Review: Acronis True Image 2018 — serious backup
Posted 8-Oct-2017 11:22


Lenovo launches ThinkPad Anniversary Edition 25
Posted 7-Oct-2017 23:16


Less fone, more tech as Vodafone gets brand make-over
Posted 6-Oct-2017 08:16


API Talent Achieves AWS MSP Partner Status
Posted 5-Oct-2017 21:20



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.