Error Code NET::ERR_CERT_DATE_INVALID"

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Error Code NET::ERR_CERT_DATE_INVALID"

I recently started getting this error message when trying to access my Comcast email account. I can sign into the Comcast site, pay my bills, watch shows, but when I try to get to my email I get the following message, "Attackers might be trying to steal your information from xfinityconnect.email.comcast.net (for example, passwords, messages, or credit cards). (Learn more) NET::ERR_CERT_DATE_INVALID". I have been accessing this account without issue since 2014. I can access the account on my iPhone and iPad as well as my PC at work. This only happens on my Mac Book Pro. It doesn't matter whether I use Chrome or Safari. How can I fix this, please?

Device affected 2012 Mac Book Pro 15 inch Laptop

Posted on Apr 2, 2021 8:53 AM

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Answer 1

Eric--F

Community Specialist

Apr 3, 2021 4:16 PM in response to Galileo7351

Hi Galileo7351,

Thank you for posting in Apple Support Communities. From our understanding, whenever you try to log into your Comcast website, you get a pop up, is that correct? Do you get a pop up when you visit any other websites? You mentioned that this happens on your Mac but not on your other devices, is the macOS completely up to date?

You can try the steps here: Block pop-ups in Safari on Mac.

You can also try the steps here: If Safari doesn't open a webpage or isn’t working as expected.

Take Care!

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Error Code NET::ERR_CERT_DATE_INVALID"

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