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147 posts

Master Geek

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  # 896023 15-Sep-2013 19:58
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Ah, the intermittent 40 second wait problem. I remember it well, although I haven't seen it in a long time despite still being on the In Home cable network.

I started a Geekzone thread on this issue more than a year ago, here it is -  http://www.geekzone.co.nz/forums.asp?forumId=44&topicId=105805

A brief recap of my observations from that topic:

A few addresses handled by Akamai, most notably static2.stuff.co.nz, would show the intermittent 40 second delay problem for me. They would normally resolve to an IP address in NZ and those fetches would complete very fast, much quicker than a second. But sometimes the data was coming from outside NZ, and in those cases almost every fetch time would fall into one of two time ranges: 0-2 seconds, or 39-41 seconds.

When it was happening I could often reproduce the 40 second delay outside a web browser with curl or wget, so it was not limited to my choice of browser. I was only using the recommended 203.97.78.43 and .44 DNS servers, and still am. I've never used any external DNS like 8.8.8.8.

About a week or two after I started that topic, the problem seemed to fade without any change in hardware or software configuration on my part. I have no idea why. It reappeared sporadically on rare occasions. Can't remember the last time I have seen it. Definitely rarer for me in 2013 than previous years.


1387 posts

Uber Geek


  # 896026 15-Sep-2013 20:01
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heapsort: Ah, the intermittent 40 second wait problem. I remember it well, although I haven't seen it in a long time despite still being on the In Home cable network.

I started a Geekzone thread on this issue more than a year ago, here it is -  http://www.geekzone.co.nz/forums.asp?forumId=44&topicId=105805


akamai's doing nothing wrong in this situation, it's probably that it's just appearing on varying ip's, which are different when you do the lookup to when the cache does the lookup.

in some ways, the cache shouldn't do it's own dns lookup, and should just go to the destination you inititally connected to - but that'd open itself up to cache poison attacks.

i wonder if the same problem is going to manifest with google now?  as i see google bounce between sydney, new zealand, and more distant quite frequently (i think it's taiwan?  not sure.. )


doing a few quick reloads may force it to bypass proxy.


 
 
 
 


147 posts

Master Geek

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  # 896028 15-Sep-2013 20:05
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mercutio:
heapsort: Ah, the intermittent 40 second wait problem. I remember it well, although I haven't seen it in a long time despite still being on the In Home cable network.

I started a Geekzone thread on this issue more than a year ago, here it is -  http://www.geekzone.co.nz/forums.asp?forumId=44&topicId=105805


akamai's doing nothing wrong in this situation, it's probably that it's just appearing on varying ip's, which are different when you do the lookup to when the cache does the lookup.

in some ways, the cache shouldn't do it's own dns lookup, and should just go to the destination you inititally connected to - but that'd open itself up to cache poison attacks.

i wonder if the same problem is going to manifest with google now?  as i see google bounce between sydney, new zealand, and more distant quite frequently (i think it's taiwan?  not sure.. )


doing a few quick reloads may force it to bypass proxy.



Didn't mean to imply that I thought it was something caused by Akamai, if that's the way you interpreted it. Just that I only ever noticed the 40 second delay fetching static data from sites that used Akamai.

Why the long delay would always be very close to 40 seconds, I don't know.

1387 posts

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  # 896029 15-Sep-2013 20:06
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heapsort:
mercutio:
heapsort: Ah, the intermittent 40 second wait problem. I remember it well, although I haven't seen it in a long time despite still being on the In Home cable network.

I started a Geekzone thread on this issue more than a year ago, here it is -  http://www.geekzone.co.nz/forums.asp?forumId=44&topicId=105805


akamai's doing nothing wrong in this situation, it's probably that it's just appearing on varying ip's, which are different when you do the lookup to when the cache does the lookup.

in some ways, the cache shouldn't do it's own dns lookup, and should just go to the destination you inititally connected to - but that'd open itself up to cache poison attacks.

i wonder if the same problem is going to manifest with google now?  as i see google bounce between sydney, new zealand, and more distant quite frequently (i think it's taiwan?  not sure.. )


doing a few quick reloads may force it to bypass proxy.



Didn't mean to imply that I thought it was something caused by Akamai, if that's the way you interpreted it. Just that I only ever noticed the 40 second delay fetching static data from sites that used Akamai.

Why the long delay would always be very close to 40 seconds, I don't know.


it'll be timeout on the proxy for connecting to remote host.  or timeout on browser.



15249 posts

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  # 896035 15-Sep-2013 20:39
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Using only TC DNS servers the problem still happens. I'll try to narrow it down some time, the speed tracer tool isn't working well for me today.

1387 posts

Uber Geek


  # 896037 15-Sep-2013 20:41
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timmmay: Using only TC DNS servers the problem still happens. I'll try to narrow it down some time, the speed tracer tool isn't working well for me today.


do you have chrome?  chrome can have hola unblocker installed, and you can easily switch web sites to use proxy in diff countries.




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  # 896046 15-Sep-2013 21:05
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Yes I use Chrome. If it really acts up I just turn my VPN on, which also has servers in most countries.

 
 
 
 




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Uber Geek

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  # 896680 17-Sep-2013 07:33
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A trace of loading the page this morning - using only TC/Vodafone DNS servers.




15249 posts

Uber Geek

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  # 897068 17-Sep-2013 16:26
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This has been going on for days now. Can anyone from Vodafone/TC help get this sorted? Can anyone else reproduce it?

I have to turn on my VPN to browser stuff. Pages don't load within my patience threshold which seems to be around 15 seconds.

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  # 897125 17-Sep-2013 17:02
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timmmay: This has been going on for days now. Can anyone from Vodafone/TC help get this sorted? Can anyone else reproduce it?

I have to turn on my VPN to browser stuff. Pages don't load within my patience threshold which seems to be around 15 seconds.


Hi,

I would suggest contacting the helpdesk for further troubleshooting.

Thanks.



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Uber Geek

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  # 897139 17-Sep-2013 17:40
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They'll tell my to plug my router directly into my computer, reboot, etc. I can't really be bothered dealing with first level support. I may eventually if I get bored enough. For now I'll just use the VPN. Looking at getting UFB anyway, this may accelerate it.

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Ultimate Geek

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  # 897194 17-Sep-2013 20:22
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timmmay, can you access steampowered.com ? I haven't been able to load it for a few days now, a friend who is also on cable has the same problem. I can only access the Steam Store through vpn at the moment. I'm not having any trouble with Stuff though.



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Uber Geek

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  # 897196 17-Sep-2013 20:25
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Yes I can access steampowered.com. It took quite a while to load, and the little wheel is still turning, but I can see it.

695 posts

Ultimate Geek

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  # 897198 17-Sep-2013 20:33
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Hmm. I wonder what's going on in my case, funny that I have someone else having the same problem as me but I can't find anything in the gaming forums around to suggest it's a wider problem. Will keep using the vpn I guess until it's sorted.



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Uber Geek

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  # 897214 17-Sep-2013 20:57
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Ping/traceroute should give you some clues.

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