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Secure connection failed error

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Hello- I have just begun getting "secure connection failed" with "connect-reset-error" when I am trying to sign in to any Comcast site (I'm trying to load my email). This started yesterday when I did the most recent firefox update. I am able to get access to the email on my phone, so the issue appears to be with my computer. Thank you for any advice you can offer.

Hello- I have just begun getting "secure connection failed" with "connect-reset-error" when I am trying to sign in to any Comcast site (I'm trying to load my email). This started yesterday when I did the most recent firefox update. I am able to get access to the email on my phone, so the issue appears to be with my computer. Thank you for any advice you can offer.

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It looks like Xfinity moved some pages around and old links are failing.

Could you try starting from https://www.xfinity.com/hub/

Toward the upper right, there's an account button (looks like a little head and shoulders in a circle) that opens a panel to sign in.

Any luck using the "Check Email" link on that account panel?