Since you mentioned CGNAT, make sure you have IPv6 enabled and see if there is a difference when not using CGNAT.
-peter On 2026 Jul 30 (Thu) at 12:48:20 +0100 (+0100), Kevin Chadwick wrote: :I've discovered that using mirrors with http instead of https solves a :particular issue with Three mobile networks. I don't see connection retries on :Linux on the same network using https. I did use tcpdump but I couldn't see much :at all. It does seem to happen towards the end of e.g. BSD or base.tgz download. : :I have no idea what's going on and http works (far better than using ftp -C to :get syspatches manually) but thought it might be worth mentioning. I assume it :would happen on any Three mobile connection but I have only had it happening on :a three mobile phone connection for years and even more recently a separate :three mobile broadband connection at a different mast but not far away. : :Another noticeable thing about Three mobile connections is that without e.g. a :Warp VPN then google will ask for captcha to search because CGNAT means many :connections from each IP but I don't see how that would relate to https. :Especially when it's every time you try to download base.tgz usually or always :towards the very end of the download (CGNAT IP changes aren't that frequent). : :-- :All the best, : Kevin Chadwick :
