I'm pretty sure the problem is with the CDNs, but there are some other things that can affect speeds:ġ.
This repeated throughout the download and it ended up downloading in under an hour, but it should have only taken about 15 minutes. It's like speeds were being throttled at times. Today I was downloading at 5 GB update from Limelight and it downloaded at 2 Mbps for awhile, then jumped to 33 for awhile and then back to 2. I paused and restarted and then it said it would take about 30 minutes and had switched to downloading from Limelight. It was downloading from Akamai and said it would take 8 hours. Yesterday I tried to download a 3 GB game and it was going at 2 Mbps. I've also found that downloads start at very slow speeds won't ramp up for about a minute or two. I see speeds upwards of about 40 Mbps on Limelight, which can download 1 GB in under 4 minutes, but I'm not seeing that consistently. Limelight is much better, but inconsistent. edit: just saw the same slow, fast, alternating with Akamai. At that speed it takes 68 minutes to download 1 GB. Akamai is horrible, with speeds maxing out at about 2 Mbps. Sony uses (at least) two CDNs for downloads: Akamai Networks and Limelight Networks. I've done some investigating and here's what I've found. I have a 100 Mbps connection from Comcast and my PS4 is wired. I've been having problems with slow downloads for a few weeks. It is not switching by system software design but by how DNS queries of the PSN backbone domains (zeus, apollo, poseidon, ares). I did observe a permanent drop for one of the downloads at one point to 1.5MB/s - 2MB/s on an Akamai connection of which I reset the network connection and had a much better subsequent connections.Įxplaining why you can experience erratic transfer speeds (more so with 2.00 update) is that the PS4 is constantly cycling/refreshing the download connection (not sure if it does this on purpose or due to networking issues) which can result in switching between CDNs that PSN uses my ISP/location is setup with Limelight Networks and Akamai. Proxying the connection to local network (privoxy) server yields higher more consistent speeds (even through Akamai which are the servers that get at most 1MB/s but avg at 200-300KB/s) between 5-8MB/s of which is my provisioned speed. I was about half way through writing up that something must be going on with Akamai servers that distribute for PSN.īut now I think something happened with the networking stack for 2.00+īecause just for sake of eliminating/working around the 200-300KB/s transfer speeds I tried an old trick/workaround that works with PS3 (of which I thought would never have to be used again with PS4)
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