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3 posts

Wannabe Geek
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Topic # 239800 5-Aug-2018 09:32
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So the explain the full story.




My VDSL connection has always been quite good but recently I noticed my peak download speeds were capping out about 1 MB/s where as they usually capped out about 5-6 MB/s on local gaming servers etc.




This peaked my interested and checked my sync speeds in my modem and there I had noticed I was syncing ~15000 kb/s for download and ~800 kb/s for upload. I knew this was much lower than my usual sync which was ~40000-55000 kb/s (down) and ~ 12000-14000 kb/s (up). So I decided to turn power off to the modem for a restart, then the unthinkable happened... I could not sync.




I did a bunch of debugging measured the continuity of my incoming DSL cable from the jack to model, the internal jack terminals (not from outside). Everything seemed to be ok so I sourced a brand new modem from my friend for testing purpose.




I plugged in the new modem just with my laptop and without the remainder of the network and it was good, sync was ~28000 kb/s (down) and ~11000 kb/s (up), granted not as good as the previous numbers but still much better than before. Did a speed test everything was fine.




Went to hook the remaining computers back onto the network, then I ran the speedtest again and the numbers dropped dramatically, checked sync and it's dropped even lower than when I decided to restart the line... Hoping I would wake up and it the problem would be gone... nop... these are my current stats from the modem. 




DSL synchronization status:





Connection status:





Upstream line rate (kbit/s):





Downstream line rate (kbit/s):





Maximum upstream rate (kbit/s):





Maximum downstream rate (kbit/s):





Upstream noise safety coefficient (dB):





Downstream noise safety coefficient (dB):





Upstream interleave depth:





Downstream interleave depth:





Line standard:





Upstream line attenuation (dB):





Downstream line attenuation (dB):





Upstream output power (dBmV):





Downstream output power (dBmV):





Downstream interleave depth:





DSL up time:


0 days 10 hours 2 minutes 56 seconds




I've called my ISP and they've logged a fault and from their time graph, they said their graph represents what I said:


up to the 25th of July I was running ~45000 kb/s (down) and ~11000 kb/s (up)


After the 25th of July I was running ~12000 kb/s (down) and ~7000 kb/s (up)


and now I'm running at ~7000 kb/s (down) and ~400 kb/s (up).




They've logged a fault with Chorus who will probably attend the problem Monday or Tuesday. 




So I'm very lucky I have internet rather than no sync but I wanted to get insight to see what the problem could be.


Who has experience sudden degradation in sync and what caused it?


Could be the incoming wiring? Or;


Usually something on the chorus network?


Can I do anything to test if it's on my side?


Any suggestions/recommendations welcomed, would like to get further insight.




Thanks in advanced.


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5189 posts

Uber Geek
+1 received by user: 1682

  Reply # 2068192 5-Aug-2018 10:04
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There are literally hundreds and hundreds of threads on Geekzone alone reiterating the same advice each time this question is asked, so not going to type it again.


Given the obvious symptoms and that Chrous are engaged, wait until they've done their troubleshooting and hopefully resolved it. If you want more details as to what goes wrong and why, have a read through some of the other threads.


EDIT: If you really really really want intimate details of VDSL, here's 284 pages of reading pleasure!

'That VDSL Cat'
9066 posts

Uber Geek
+1 received by user: 1993


  Reply # 2068209 5-Aug-2018 11:09
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Sounds pretty clearly like a line fault, do you have a landline by chance? - how does it sound?




Ignore the short experience of getting up to a 20mbit sync, by the looks of things it's slowly pulling the signal down as it resyncs with errors.


Sounds to me like the provider has done all the right sort of checks and identified it dropping off, great to hear :) Whos the provider out of interest? - i like to hear who is doing well, normally these threads are ranting about incompetents :)

#include <std_disclaimer>


Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.


3 posts

Wannabe Geek
+1 received by user: 3

  Reply # 2068215 5-Aug-2018 11:28
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Voyager and no landline, just naked DSL.




Thanks for the advice. 




Also apologies if this is reoccurring have I did do a shed ton of searching in google and through threads last night, mostly people trying to improve already decent sync signals or no sync signals at all.




Alright just wait for the Chorus man I guess :)

5189 posts

Uber Geek
+1 received by user: 1682

  Reply # 2068216 5-Aug-2018 11:30
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Voyager are generally pretty responsive to issues - be interesting to hear what Chorus find through.

3 posts

Wannabe Geek
+1 received by user: 3

  Reply # 2072264 12-Aug-2018 20:52
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Had a little hiccup with Voyager, they tried to close out ticket since I got sync back but failed to check the low sync rate...




Chorus job was logged. There was a damaged core on the pair so they repaired it, sync wasn't the greatest. I let the Chorus guy know he said it's above standard and would look into it. The next day the sync went out again for about an hour but this time I got the full sync so I'm back in action at 70mbps/30mbps!




Thanks for the help.

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