[The PIT]

Originally Posted by cje85

It would be easier to list sites which aren't affected, as I've only ever found one! www.twit.tv has videos available to download hosted on the CacheFly CDN, and these always download at solid full speed (200Mb off-peak).

Everything else shows poor download speeds and huge variations during the download. This includes DropBox, Google Drive, music downloads from Amazon, Windows updates, app updates from Google Play, or even just things like downloading a large PDF file from the Ofcom website.

I've tried connecting to the SuperHub directly instead of going through my ASUS router but the problem is still evident. It affects every device including Windows PC, Chromebook and various Android devices.

I suspect it's somehow related to the Motorola CMTS, as Jen_A believes on the VM forum. As you say, one person reporting something similar on a Cisco CMTS isn't confirmation of anything and might not be directly related to this problem. I'm told there are no imminent plans to replace my CMTS (KNOW12) with an Arris or Cisco, but to check again every so often.

Are there any sites to test UDP speeds?

That site is certainly affected downloads at the same speed as any other site.

---------- Post added at 12:27 ---------- Previous post was at 12:25 ----------

Originally Posted by cje85

That's an interesting development and perhaps the first confirmation of this issue on a non-Motorola CMTS.

When downloading do you get a stable 100Mbps, or does the speed fluctuate?

I've attached a graph showing how unstable the download speed is for me. This was done at 10:30 on a Friday morning so the traffic on the local network should have been quite low.

I could accept a 70Mb per thread cap (as long as they were honest about it) but the speed variances seem far too extreme for this to be a deliberate policy. It can reach 170Mb then fall to 7Mb.

Depends on the time of day evenings it will vary. The one I did yesterday was rock solid at lunch time.