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mfahey
mfahey
New Member
November 7, 2017
Solved

Websites simply show error ERR_EMPTY_RESPONSE intermittent

  • November 7, 2017
  • 1 reply
  • 28352 views

We have wix websites that arent working behind the fortigate 1500d.

 

When you go to http://www.site.com it forwards to https://www.site.com

 

Randomly all browsers show the following error. 

This page isn’t working

www.website.org didn’t send any data.

ERR_EMPTY_RESPONSE   I already tried setting auto-asic-offload to false but it still does work 100% of the time.   Running 5.4.5 code.   This does not happen on any other network besides behind this fortigate.   Not getting anywhere with support.   Suggestions?         

    Best answer by mfahey

    AS a workaround I used an ip pool with multiple public ip's to push my outbound traffic out instead of just one.

     

    The permanent solution is getting rid of wix. They are terrible and the problem is wix.  

    1 reply

    anelis
    anelis
    New Member
    November 7, 2017

    Wix websites is on the cloud. So it's clients behind your fortigate that aren't able to access that website.

     

    Are you in proxy-mode ? do you have ssl deep inspection enabled ?

     

    At first I would try to disable ssl deep inspection on a dedicated rule to test it out.

     

    Also, it would be wise to check the ssl certificate on that website and check if it complies with today's security standards.

     

    A network capture between the Client and the Fortigate and between the Fortigate and the Wix's server at the same time would definitely give you an insight on what's happening exactly.

    mfahey
    mfaheyAuthor
    New Member
    November 8, 2017

    The fortigate is in nat mode. This happens on a policy with no content filter, no ssl inspection, no application control ,no anything.

     

    The sites ssl cert is 2048 Sha2 cert. The cert is fine.

     

    I provided a capture to fortinet and they can't reproduce so it's as if my problem doesnt exist.

    Very frustrating. This only happens with users behind a fortigate firewall.

    DanielTX
    DanielTX
    New Member
    January 5, 2018

    Did you find a resolution for this? I am having the exact same experience with a website hosted on Wix except I am behind a 600c running 5.6.2.

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