Amazon - "Unable to connect using required security protocol"

 This morning (29th December 2025) I went to log into the Amazon shopping website (actually https://www.amazon.co.uk/ because I'm in the UK) and got this error:


A notice to our users

Unable to connect using required security protocol. To access the page requested, please upgrade or use a different browser or mobile device to ensure that your experience on Amazon will be uninterrupted.

To install or update a supported browser please visit any of the browsers websites ...


I thought that was a bid odd. Checking Windows updates my machine was up to date. But there was an optional upgrade to Windows 11, version 25H2 that I'd not installed.

  • How to fix?
    • The Solution to my Amazon shopping issue was to install the optional upgrade Windows 11, version 25H2

Sometimes these optional upgrades aren't all that optional.


Image: The Amazon shopping error screen







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