Lightspeed broadband - Slow access to iOS updates

I've had Lightspeed installed for a couple of months now on the 500mb package. Everything has been running smoothly until last night when Apple pushed out the latest iOS 26 update. I started the download as normal and the time remaining kept creeping up and up, at one point showing over 9 hours. I looked on the live data of the Eero app which showed my iPhone and iPad both running at just 3Mb/sec. I just assumed that Apple's servers are taking and hammering. But when I turned off my phones wifi and the download switched to EE's 5G the whole thing downloaded in a little over 20 mins.

Everything else seems to run fine, speed tests all show I'm getting full speed. It seems like there's something going on specifically with Lightspeed and Apple. Are there any other Lightspeed users here who have encountered the same?

The Apple servers were getting hammered. It's possible that by switching networks you landed on an Apple server that was lower utilisation and so it sped up the download. First night of Apple updates always gives wild estimates on completion. I did it this morning and it took no time (but I already had the RC so I didn't need to be in any rush).

I remember some years back I tried on the first night and couldn't even get the download started - their capacity presumably is way higher than it used to be.

In reply to a post by No_One:

But when I turned off my phones wifi and the download switched to EE's 5G the whole thing downloaded in a little over 20 mins.

I updated to 18.7 last night over EE 5G and it took over an hour. A friends phone on my Virgin Media WiFi updated to iOS 26 in 30minutes. I assume some ISPs may host Apple CDN caching nodes, and I assume they use all the options (e.g. Akamai, AWS cloudfront, Azure's thing etc etc) for these annual big launches.