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NET::ERR_CERT_COMMON_NAME_INVALID Issue

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NET::ERR_CERT_COMMON_NAME_INVALID Issue

I cannot access a work site...is this a Comcast/Xfinity issue?  None of the workaround/fixes correct the issue.

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NET::ERR_CERT_COMMON_NAME_INVALID

Subject: low-xdns.xfinity.com

Issuer: COMODO RSA Organization Validation Secure Server CA

Expires on: Aug 8, 2019

Current date: May 10, 2019

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Re: NET::ERR_CERT_COMMON_NAME_INVALID Issue

If you are confident that the hostname is trustworthy, follow the instructions at http://low-xdns.xfinity.com/.