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Logging In to Comcast.net

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Every time I log in to Comcast.net, which is my home page, I get the following message:

"Secure Connection Failed

An error occurred during a connection to idm.xfinity.com. Peer’s Certificate has been revoked.

Error code: SEC_ERROR_REVOKED_CERTIFICATE

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem."

This started happening just a few days ago after your recent upgrade. If I get a new window, I can then log in to Comcast. Why am I getting this message now. It's only started recently and I've been using Firefox for years.

Every time I log in to Comcast.net, which is my home page, I get the following message: "Secure Connection Failed An error occurred during a connection to idm.xfinity.com. Peer’s Certificate has been revoked. Error code: SEC_ERROR_REVOKED_CERTIFICATE The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem." This started happening just a few days ago after your recent upgrade. If I get a new window, I can then log in to Comcast. Why am I getting this message now. It's only started recently and I've been using Firefox for years.

Všetky odpovede (5)

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Please respond via email. [email removed]@comcast.net.


(note that we do not provide support via email - c)

Upravil(a) cor-el dňa

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If you use a bookmark to access a specific page, instead navigate to this page starting with the main page or with the sign in page in case there is a problem with this bookmark. Try to login via this page:


See also:

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Who are you using for DNS?

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What is DNS and how do I find it?

The Comcast login page is my home page. I go there automatically when I launch the internet. The error message appears every time I try to log in no matter how long I wait. I work around it by starting a new window and going to my home page by clicking a book mark. Then I log in with no problem.

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We had several reports on Friday or a "SEC_ERROR_REVOKED_CERTIFICATE" on an address at idm.xfinity.com.

It appears that someone at Xfinity forgot to update the certificate on that server.

Firefox may be the last browser that does a real-time check for whether a site certificate has been revoked, so it is the first affected by this kind of problem. Firefox doesn't have a way to exempt only one site from this check; it is all sites or no sites. For that reason, if you are okay with checking your email in another browser for a while, that probably is safest, rather than me describing how to turn off certificate revocation checking globally.

Let us know what you think.