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certificate error on https for gmail

Posted on 2016-09-13
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Last Modified: 2016-09-21
win7 pro, I am unable to access gmail accounts from this specific pc. I get a certificate error message .
I get a message of the browser shows a warning such as "The site's security certificate is not trusted!" (Google Chrome) or "This Connection is Untrusted"  But their is no certificate to install. It only happens on this specific pc.
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Question by:jim3725
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Expert Comment

by:Russ Suter
ID: 41796891
Without seeing the certificate I cannot be certain but...

Chrome is getting a little draconian about how it trusts certificates. As of a while ago it no longer trusts certificates that expire after this year and have 1024 bit strength. It's kind of forcing people to use 2048+ bit keys.

Could that be something to do with your issue here?
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Expert Comment

by:Jackie Man
ID: 41797331
What browser you are using? Is your date and time of your computer correct? If your data and time is incorrect, you will not have access to Gmail.

Google Chrome
Firefox
Safari
Internet Explorer

Source: https://support.google.com/mail/answer/6557?co=GENIE.Platform%3DDesktop&hl=en
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Author Comment

by:jim3725
ID: 41797663
It doesn't matter if it's ie11 or chrome, I get the same message. I have a ntp server locally so time and date is correct. I've tried adding mail.google.com to trusted sites , but it still doesn't get past the untrusted certificate message. I don't know which certificate to add/download to this pc to get past this issue, since I don't get a prompt to install any cert.
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Expert Comment

by:Jackie Man
ID: 41797699
Are you using a proxy server?

There is no need to download a cert before you can access gmail.
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Author Comment

by:jim3725
ID: 41797707
No,  I am not using a proxy server, I have googled on this issue, and that was one of the possible issues.
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Expert Comment

by:Jackie Man
ID: 41797989
Location correct?

Control Panel -> Language and geographical location
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Author Comment

by:jim3725
ID: 41799575
verified date, time,  and language , location.
So error message is " There is a problem connecting to this website., I've added to the security sites,
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Expert Comment

by:Jackie Man
ID: 41799579
Do a traceroute to mail.google.com in elevated command prompt.

 tracert mail.google.com
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Expert Comment

by:Jackie Man
ID: 41799583
Which country are you from?

It seems to me that your government or ISP has done something to interrupt connection to gmail.
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Expert Comment

by:Jackie Man
ID: 41799594
interrupt is not the accurate term, it should be intercepted....

Someone or even your government wants to capture your gmail traffic as cert is not correct means that there is a middleman attack between your computer and Gmail server.
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Author Comment

by:jim3725
ID: 41799613
tracert from both pc 's arrives at same destination on 15 hops to 216.58.219.197
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Expert Comment

by:Jackie Man
ID: 41799639
Other browser OK? Firefox, Safari?

Try to reset IE setting by:

Close all Internet Explorer windows. Select the Tools  button, and then select Internet options.
Select the Advanced tab, and then select Reset.
In the Reset Internet Explorer Settings dialog box, select Reset.
When Internet Explorer finishes applying default settings, select Close, and then select OK. Restart your PC to apply changes

Source: https://support.microsoft.com/en-us/help/17441/windows-internet-explorer-change-reset-settings

IE and Chrome make use of the same IE settings.
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Author Comment

by:jim3725
ID: 41799649
The same problems exists when using IE11 or Chrome.
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Author Comment

by:jim3725
ID: 41799655
I've reset ie settings, and have restarted pc. I will update when pc is back on line
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Expert Comment

by:Jackie Man
ID: 41799681
Finally, antivirus or Internet security software might have caused the problem.

What is the antivirus / Internet security software installed?
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Author Comment

by:jim3725
ID: 41799698
panda antivirus. I tried disabling it but it still had the same result
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Expert Comment

by:Jackie Man
ID: 41799755
Disabled may not be sufficient, need to uninstall it and restart PC to test.
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Accepted Solution

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jim3725 earned 0 total points
ID: 41802225
I deleted the reservation of the ip address on this pc. Received a new ip address, updated network firewall address with associated FW policy. This solved the issue.
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Author Closing Comment

by:jim3725
ID: 41808400
I deleted the reservation of the ip address on this pc. Received a new ip address, updated network firewall address with associated FW policy. This solved the issue.
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