Firefox says "expired certificate".

[#1]

I just logged in to my router and had to click through warnings about an expired certificate from Firefox. I was just wondering how https is implemented on the router? How is certification handled? Has anybody else come across this since https was introduced?

[#2]

Plusnet are joining other ISPs ( VM & EE ) in using a self signed certificate on their Hub / Router,
the result is an HTTPS connection to shield the credentials, the cost is all these browser warnings
that are off putting for many folks.

[#3]

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@longedge wrote:

I just logged in to my router and had to click through warnings about an expired certificate from Firefox. I was just wondering how https is implemented on the router? How is certification handled? Has anybody else come across this since https was introduced?

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You shouldn't be seeing "Expired" certificate warnings, as the current self-signed certificate is valid to ~2035.

The following help page somewhat explains the error messages various browsers will show to the user, and how to proceed.

https://www.plus.net/help/hubgui/hub-warning/

[#4]

Hmm.. I only go to my hub homepage very occasionally but just tried again and got no warning. Hohum, another one on the  "I never found out why that happened" list. 😀