I've been trying to access the packages.microsoft.com site to get the main DEB file for configuration, but it just won't load. I've used browsers like Edge, Firefox, and even Safari on iOS, but they all time out after spinning indefinitely. Using curl, wget, or Invoke-WebRequest doesn't help either unless I activate a third-party VPN, which makes the site load without issues. I checked with several UK businesses and they can access it fine. The server is responsive to pings, and I can hit port 443 using Test-NetConnection, but without a different public IP, I'm stuck. This makes me think that Microsoft may have blocked my public IP, but other services like OneDrive, Outlook, and Office 365 work perfectly fine. Curiously, the only other site acting like this is developercommunity.visualstudio.com. Has anyone experienced similar issues? I can't find any information suggesting Microsoft blocks access to their sites.
EDIT: I have both static IPv4 and IPv6, and when I disable IPv6 in Windows, the site loads successfully. It has a v6 address and responds to pings on port 443.
EDIT 2: When I hotspot my phone, which uses EE with IPv6 enabled, the site loads instantly. Could Microsoft have blocked the IPv6 prefix?
2 Answers
It sounds like your Windows machine is defaulting to IPv6, which might have a broken route somewhere. Even if you can ping the address, that doesn't always mean it’s a routing issue. Sometimes major sites employ load balancers or give different DNS responses, causing connectivity problems that aren't immediately visible. If the site loads fine with a VPN, that can indicate an issue with how your ISP is routing IPv6 traffic.
You're on the right track thinking it could be your ISP. It's entirely possible for them to have a faulty IPv6 route while IPv4 still works correctly. The connection from your mobile carrier (EE) shows that the site is accessible, which points to a routing issue upstream with Zen Internet. It's worth reaching out to them once their support is available to see if they can fix the IPv6 routing.
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