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Why are google.com and gmail not trusted?

Out of the blue today our UTM 9 started dropping (I think) all google domain related sites.  All google related sites fail with: 

Your connection is not private

Attackers might be trying to steal your information from www.google.com (for example, passwords, messages, or credit cards).

 

NET::ERR_CERT_AUTHORITY_INVALID

The "https:" has a line through it.  This is the only domain that has the problem.  I can go to Yahoo.com, Bing.com, etc.   I have an opened case but support is "gathering info."  I really need to get this fixed as our corporate gmail is also inaccessible. 

TIA!



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  • Hi Mark,

    Please re-import UTM's CA in the end systems. Please refer this link for help : https://www.sophos.com/en-us/support/knowledgebase/115315.aspx

    Thanks

    Sachin Gurung
    Team Lead | Sophos Technical Support
    Knowledge Base  |  @SophosSupport  |  Video tutorials
    Remember to like a post.  If a post (on a question thread) solves your question use the 'This helped me' link.

  • Thank you for your reply.  

    The link you sent me to states:  

    Note: The steps below are only required when using Decrypt & Scan. When using URL Filtering Only, a feature added in UTM 9.2, deploying the Proxy CA certificate is not required.

    We are only performing URL filtering.  We are not using Decrypt and Scan.  Also, other https sites pass without issue.  Only google domains seem to be blocked.

    One other note, my name's not Tia.  I wrote that to mean 'Thanks in Advance."  [:)]

    Mark

  • Hi Mark,

    I totally missed that abbreviation and I will correct it. Did you clear the web browsing history and try google on several browsers?

    Sachin Gurung
    Team Lead | Sophos Technical Support
    Knowledge Base  |  @SophosSupport  |  Video tutorials
    Remember to like a post.  If a post (on a question thread) solves your question use the 'This helped me' link.

  • No problem.

    Yes, I cleared the cache and history.  I also tried it on different browsers.  The only way I've been able to get to google.com is by turning off the web filter module.  I have a support ticket open and it's being worked on.  The really odd thing is that I didn't change anything prior to the problem occurring.  I consistently get a "host not found" error.

  • This seems to be the solution per support:

    For the Host not found blocking error, it seems it occurs when the destination IP is reported as blank.


    Can you try the following actions and advise back if this helps:

    1) go to Network Services > DNS > Flush resolver cache
    2) go to Web protection > Filtering Options > Misc > uncheck "Pharming" protection at the bottom of the page 

Reply
  • This seems to be the solution per support:

    For the Host not found blocking error, it seems it occurs when the destination IP is reported as blank.


    Can you try the following actions and advise back if this helps:

    1) go to Network Services > DNS > Flush resolver cache
    2) go to Web protection > Filtering Options > Misc > uncheck "Pharming" protection at the bottom of the page 

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