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slow and unreliable downloads from Apple Content Distribution Network (App store)

rjw
Neighbour

I have had Telus 15Mbit ADSL for many years and just recently have come across an issue accessing content on Apple's Content Distribution Network (CDN) that is negatively impacting our house – and likely those of other customers as well. 

 

For the past several weeks we have been having problems in our home downloading content from Apple's CDN, most notably IOS 8.0 (1GB per device) and most recently the MAC OS Yosemite upgrade (5GB).   Downloads from Apple's CDN are extremely slow (estimate of 5+ days to download MAC OS Yosemite update, and 2+ hours for 69MB IOS 8.1 update), and downloads often fail before completing.    Downloads from other content providers we use have been working reliably with throughput close to our connection speed, so this problem appears to affect only some content providers, and maybe only Apple's CDN. 

 

I have verified our internet connection both wirelessly and wired using speedtest.net which produced results of 14+Mbit/sec download and +.75Mbit/sec uploads wired and slightly less wirelessly.   The problem with extremely slow and failed downloads occurs on both wired and wireless devices.  

 

I spent some time troubleshooting in the last couple of days.   Our regular router has been assigned IP address 50.92.132.X/255.255.252.0 with default gateway 50.92.132.1 and DNS Servers 75.153.176.9 and 75.153.176.1 by Telus through DHCP.   During my testing I observed the Apple App store establishes a connection with ussea2-vip-lx-001.aaplimg.com or ussea2-vip-lx-001.aaplimg.com for the download.

 

Yesterday, out of desperation, I connected a borrowed router (same make and model), which was assigned IP address 75.156.108.X/255.255.252.0 with default gateway 75.156.108.1 and DNS Servers 75.153.176.9 and 75.153.176.1 by Telus through DHCP.   I tested the connection using speedtest.net and got nearly identical results as with my normal router of 14+Mbit/sec download and +.75Mbit/sec upload wired.    I then tried to access the MAC OS update from the Apple App store and found that it downloaded all 5+GB in less than an hour!  For what it is worth, the network stats I gathered showed the download was from the same host as previous attempts – which to me indicates some kind of bottleneck related to routing to the network my assigned IP address is on.

 

Today, in an effort to understand the source of the issue, I switched back to my regular router, which was assigned an IP on the 50.92.132.X network and the problems accessing content on Apple's CDN returned immediately.   I then configured my regular router to use the MAC address of the borrowed router that I connected last night, and just like the borrowed router, my regular router was assigned IP address  75.156.111.X/255.255.252.0 with default gateway 75.156.108.1 and DNS Servers 75.153.176.9 and 75.153.176.1.   With this change MAC address and in assigned IP address - nothing else, content on Apple's CDN such as the MAC OS update could be accessed and downloaded at expected speeds using my regular router.

 

My conclusion:   For some reason, being assigned an IP address on 50.92.132.X/255.255.252.0 network is resulting in extremely poor throughput and unreliable transfers accessing content from Apple's Content Distribution Network and possibly other content providers.   As long as I have a MAC address that continues to get an IP address on the 50.92.132.X network, I can reproduce the problem very easily.

 

Does anyone know how Telus assigns IP addresses these days?   I know many years ago you had to register devices with Telus to get internet routable IP addresses, but that URL does not seem to be accessible anymore and I seem to be able to get an internet routable IP address to devices not registered with Telus, so I am guessing the registration process (at least the manual one) has been eliminated.

 

Has anyone else experienced anything similar with Apple or other content providers?

1 ACCEPTED SOLUTION

dru
Community Manager
Community Manager

Dru from TELUS here.

 

Thank you all for bringing this to our attention! 

 

Your input was invaluable in helping us identify a challenge at a connection point between our networks. We are working closely with Apple to increase peering capacity and everything should be resolved soon.

 

On behalf of the TELUS Neighbourhood team, thank you so much for your patience on this matter and sorry about the inconvenience.


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64 REPLIES 64

Mach
Neighbour

I was finally able to speak to a manager a Telus about this. They confirmed the issue is that Telus needs to upgrade their links to Apple but they are not doing that any time soon. Though it is on a upgrade "list". So until Telus decides to spend the money to upgrade their links, Telus customers will experience slow connection speeds to Apple whenever Apple released new software as their ports to Apple get saturated. When I asked the manager why there has not been an official Telus response in the forums here, they said until they do upgrade their links, which there is no timeframe on, they will not post an official response here. Poor customer service.

dru
Community Manager
Community Manager

Dru from TELUS here.

 

Thank you all for bringing this to our attention! 

 

Your input was invaluable in helping us identify a challenge at a connection point between our networks. We are working closely with Apple to increase peering capacity and everything should be resolved soon.

 

On behalf of the TELUS Neighbourhood team, thank you so much for your patience on this matter and sorry about the inconvenience.


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