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58 posts

Master Geek

# 142885 27-Mar-2014 17:06
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So recently, as of last weekend, I've noticed a drastic reduction in download speed to Previously we could easily saturate our fibre 100 connection to the site, pulling down in the MB/sec range. Now, irrespective of how may simultaneous connections, each or any connection is limited to 200kB/sec. Seems odd they all seem to be limited to the same amount and nothing has changed our end. All other traffic is fine as far as I can tell. 

Here is the thing though, a second attempt at the very same file will saturate the line again. I'm picking the Telecom guys here will say there is no traffic management going on their end, which leads me to think there maybe some sort of caching issue going on here? Has Telecom perhaps done any thing recently which could prompt this issue? Any ideas? Anyone else with similar problems?

Yes I've tried all the typical stuff before posting and no I'm not using wireless.


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'That VDSL Cat'
11027 posts

Uber Geek


  # 1014034 27-Mar-2014 17:39
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although i dont have a premium account there, was doing some tests for TimA yesterday on this service, and my Snap VDSL line was maxing out.

#include <std_disclaimer>


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


13 posts


  # 1014122 27-Mar-2014 19:46
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I am on Telecom VDSL and there is some weird caching going on for the last 10 days at least. Lot of sites behind cloudflare cdn are not working anymore as CLoudflare shows a captcha screen as they deem the IP address concerned is infected. The IP Address being shown is definitely not the one in the router but an address definitely allocated to Telecom NZ
Can someone from Telecom clarify.

This is what happens when you hit a site behind cloudflare (most streaming sites)


Why do I have to complete a CAPTCHA?


Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.




What can I do to prevent this in the future?


If you are on a personal connection, like at home, you can run
an anti-virus scan on your device to make sure it is not infected with malware.


If you are at an office or shared network, you can ask the
network administrator to run a scan across the network looking for misconfigured or infected devices.



CloudFlare Ray ID: 111994d0b3ac04c2 Your IP: Help Performance & security by CloudFlare


Even going to shows up this address instead of the address allocated to my router


Your IP:


Proxy:No Proxy Detected






Country:nz - nz flag


ISP:netway communications ltd



58 posts

Master Geek

  # 1015108 29-Mar-2014 17:03
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freitasm: I am told this is affecting other ISPs, Vodafone and Snap included.

Thanks, at least I'm not alone I guess.

An acknowledgement of the problem from Telecom would be nice and some confirmation they are looking to rectify this. 

58 posts

Master Geek

  # 1030029 23-Apr-2014 19:12
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Frustratingly we are still having this problem and we've yet to speak with anyone at Telecom whom understands the definition of cache. I see other have had problems with telecom's transparent proxy, while my understanding is somewhat limited, these problems are related?

Is it possible to be put on a static IP and then put on some sort of no transparent proxy list? Is this worth a shot? 

1948 posts

Uber Geek
Inactive user

  # 1030314 24-Apr-2014 09:15
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It's possible to get on the proxy bypass list, but what you really need to do is get a case logged with explicit flows that are causing issues. Then feel free to email me "pl at" with the case numbers and ideally wireshark traces or anything else showing the problem.

I personally don't have issues with streaming HD content from Netflix over a OpenVPN session, YouTube works fine against the local akamai cache, so perhaps it's a regional backhaul or handover issue (which there have been some) so further analsys of any similarities across a number of customers. This is why getting a case logged so trends can be noticed is very important to resolving the issue.

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