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Killerkiwi2005

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#302541 30-Nov-2022 13:34
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switched to 2degree vdsl 3 days ago, speed dropped from 40mb down to 10mb, can not get through to helpdesk, email is unanswered, not sure what to do at this point just stop paying?

 

Things already tried

 

  • turned modem off and on
  • factory reset new modem
  • old spark modem

Speed test is via Ethernet cable straight to modem, nothing else connected, you can see the vdsl is connected at 46.5 down, which ~ what we got via spark

 

 

speed test

 


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Killerkiwi2005

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  #3003622 30-Nov-2022 13:37
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more info

 

 

 

 

 


 
 
 

GoodSync. Easily back up and sync your files with GoodSync. Simple and secure file backup and synchronisation software will ensure that your files are never lost (affiliate link).
wratterus
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  #3003623 30-Nov-2022 13:40
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OK - that is a little odd. Your line speed does look to still be fine, but not throughput as you mention. Assume you have tested with multiple devices & over ethernet & WiFi & seen the same results?

 

 

 

If you test to a 2D server, is it the same also? You definitley sure your device is negotiating Gigabit to the modem?


Killerkiwi2005

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  #3003626 30-Nov-2022 13:51
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[s]

wratterus:

 

OK - that is a little odd. Your line speed does look to still be fine, but not throughput as you mention. Assume you have tested with multiple devices & over ethernet & WiFi & seen the same results?

 

 

 

If you test to a 2D server, is it the same also? You definitley sure your device is negotiating Gigabit to the modem?

 

 

Yeah all devices are running slow, thats why I tried unplugging everything, I assumed it was the modem, but the old modem gives the same result, 

 

this looks suspicious... it really looks like a 2degree networking issue




you can see the 2 degree server switch

[/s]




wratterus
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  #3003638 30-Nov-2022 14:18
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Really can't tell you what might have gone on there. Odd one. 


Killerkiwi2005

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  #3003644 30-Nov-2022 14:58
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And its gone again, must be an upstream issue some where...




Linux
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  #3003646 30-Nov-2022 15:03
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DLM kicking in? Do not repower the modem


cyril7
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  #3003648 30-Nov-2022 15:05
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Linux:

 

DLM kicking in? Do not repower the modem

 

 

Yep, thats my bet, changed provider, which forced a line card reset, and DLM does a dance.

 

Cyril




Killerkiwi2005

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  #3003651 30-Nov-2022 15:12
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So I should just wait, how long should it take for it to kick in correctly ?


wratterus
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  #3003652 30-Nov-2022 15:14
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Would ddDLM not drop the line speed? That is a pretty significant change. 

 

OP - can you 100% confirm the line speed is showing as 46/10 when the slow throuhput issue is occuring?


Killerkiwi2005

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  #3003653 30-Nov-2022 15:17
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wratterus:

 

Would ddDLM not drop the line speed? That is a pretty significant change. 

 

OP - can you 100% confirm the line speed is showing as 46/10 when the slow throuhput issue is occuring?

 

 

 

 


Linux
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  #3003654 30-Nov-2022 15:20
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Killerkiwi2005:

 

So I should just wait, how long should it take for it to kick in correctly ?

 

 

@Killerkiwi2005 If you keep power cycling the modem DLM thinks line is unstable and lowers the speed


Killerkiwi2005

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  #3003656 30-Nov-2022 15:25
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Linux:

 

Killerkiwi2005:

 

So I should just wait, how long should it take for it to kick in correctly ?

 

 

@Killerkiwi2005 If you keep power cycling the modem DLM thinks line is unstable and lowers the speed

 

 

But the connection speed is still 46mb ?  I had left it on for 2 days before trying to trouble shoot this


yitz
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  #3003669 30-Nov-2022 16:18
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You might be better off testing to Vocus or another known good NZ server rather than 2degrees servers as logically your IP originates in Vocus NZ AS 9790 network space. In the past there have been traffic congestion issues on the Vocus-2degrees interconnect.


Killerkiwi2005

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  #3003721 30-Nov-2022 16:35
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Vocus



fast.com / netflix



google speed test!

 


its really noticeable trying to git push/pull to bitbucket etc


RunningMan
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  #3003722 30-Nov-2022 16:37
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Doesn't look like DLM to me. D/S sync rate clearly showing at about 46Mb/s in the 2 screenshots yet throughput only around 10Mb/s. if this was DLM then the throughput would be proportional to the sync rate, but it isn't.

 

Don't reboot the modem repeatedly though or DLM will kick in because it thinks the line is unstable and drag the sync rate down for a while.

 

Certain there's nothing else on the connection using bandwidth? (either up or down).

 

 

 

 


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