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scogordo-2057 asked HuryShenMSFT-3800 commented

Replaced SSL cert that expires at end of week, but browsers have old one cached?

I have a TLS cert that's due to expire on Saturday. I had a new cert created (CertNew.cer). On my client's intranet site's IIS server, (just a single front end, no lb, on-prem), I modified the site bindings to use the new cert. When I checked the site in the browser, the site came up fine, but when I checked the cert's General and Details I saw it was the old one (CertOld.cer).
I tried multiple iisresets and a reboot, nothing changed from the browser. I didn't run into this issue in other environments, though those certs had expired and the intranet sites were throwing errors before being replaced.
What's the preferred method? Anything I can do on the server side, or does this require a GPO to remove/replace a specific browser-cached cert? Something else?
Thanks!

windows-server-iis
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Have you tried with open an inprivate window of your browser ?

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