Helpful ReplyHot!ERR_SSL_PROTOCOL_ERROR on Google Chrome

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Jirka
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/01/07 00:35:11 (permalink)
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ShawnZA
Yeah all 6.2.* versions are full of bugs.
We get the SSL error while accessing allowed sites.
Are your policy set to proxy mode or flow mode?



I tried both the flow and the proxy. 
The allowed sites works great, the problem is only for FortiGuard blocked site.

Jirka
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emnoc
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/01/07 07:27:46 (permalink) ☄ Helpfulby ShawnZA 2020/01/07 22:46:44
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Have anybody used curl against theses sites? Inspect the certificate and if you see any stale cert clear them. You can also test in a incognito window and see if the problem exists.
 
It sounds  like a browser issues. FWIW. I check all of those sites from  fortios v6.2.3 and see no issues using chrome on windows { Version 78.0.3904.87 (Official Build) (64-bit) }
 
Ken Felix

PCNSE 
NSE 
StrongSwan  
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Cibura
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/01/24 09:07:56 (permalink)
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Hi all, I've been following this thread since the beginning. I have 15 locations, each with a fortigate 60E or 90D. I use URL filtering exclusively. Accessing Gmail on Chrome is a problem on 6.0.6 all the way up to current 6.2.3. I have tested this in my lab, on a brand new 60E, with a brand new laptop connected as the only client, in a sterile environment, with nothing programmed into the fortigate except 1 policy for web access with URL filtering. I can duplicate the problem easily, and have tried every suggestion in the thread without success. I do not have this issue on other browsers. 
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Cibura
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/02/04 08:55:37 (permalink)
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Quick update, I believe we solved the problem, or at least my problem. I haven't fulled vetted this out yet, but so far, so good.
 
All of my static URL Web Filters end with:
* wildcard block
 
I changed it to:
[^.] regex block
 
and now everything works as it should. Wanted to get this out these asap in case it helps anyone.
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Cibura
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/02/04 08:55:44 (permalink)
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Quick update, I believe we solved the problem, or at least my problem. I haven't fulled vetted this out yet, but so far, so good.
 
All of my static URL Web Filters end with:
* wildcard block
 
I changed it to:
[^.] regex block
 
and now everything works as it should. Wanted to get this out these asap in case it helps anyone.
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tanr
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Re: ERR_SSL_PROTOCOL_ERROR on Google Chrome 2020/02/04 09:01:42 (permalink)
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Definitely pass the info on to TAC.
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