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joru
joru
Explorer II
January 5, 2011
Question

Forticlient blocks internet access

  • January 5, 2011
  • 7 replies
  • 22403 views
Hello, I have the following problem with forticlient, basically in some PC' s when FC is active internet and intranet access becomes unavailable but if forticlient is shutdown everything starts working fine, if FC is activated again the same story occurs. FC is the only antivirus installed on those PCs. FC v4.1.2 managed via FortiManager. Thanks in advance for any help with this issue.

      7 replies

      rwpatterson
      rwpatterson
      New Member
      January 5, 2011
      Welcome to the forums. Do a search under the Forticlient forum. There is a registry key to shut down part of the Forticlient system. (proxy or scanning. I don' t recall). Hope that helps
      s_ahmad
      s_ahmad
      New Member
      January 6, 2011
      hi, on your lan device (wired oder wireless) you have to clear the dns ip.
      joru
      joruAuthor
      Explorer II
      January 11, 2011
      Thanks for the welcoming rwpatterson, I' ve searched the forum and found how to deactivate fortiproxy registry entry, I' ve tried it but the problem remains. Hello s.ahmad, I' m not sure I understand your suggestion, correct me if I' m wrong, you mean that in the PC with the problem (LAN wired Device) I should erase/clear the DNS IP from the network config? if that is the case then it will only have internet web site access trough IPs (regardless of FC activated or not) or what do you mean by clearing the DNS IP? Thanks both for your answers.
      abelio
      SuperUser
      abelio
      SuperUser
      February 1, 2011
      I' ve tried it but the problem remains.
      Did you reboot the machine before re-test?
      joru
      joruAuthor
      Explorer II
      February 7, 2011
      Yes I did reboot, actually rebooting sometimes solved the problem for a while until it happened again. I guess I' ve found a way to fix this problem by disabling Fortiproxy, following some instructions from Fortinet' s support, but is hard to say because of the random nature of this issue, at least it has been working fine for about a week . 1) From cmd run the command: sc stop fortishield 2) Shutdown FortiClient 3) Go to regedit - HK_LOCAL_MACHINE/SOFTWARE/Fortinet/FortiClient/FA_FORTIPROXY/ set the " enabled" variable value from 1 to 0 If there is an error window that says something like " cannot change regedit" then right click on the FA_FORTIPROXY directory and change the permissions to Total Control (even if the value seems to have been changed) Note that all this procedure was executed in at least 2 Windows XP SP2 PCs with FortiClient V4.2 in both (I think) and inmediatelly after it the internet and intranet access returned which is a good sign.
      L_FTNT
      Staff
      L_FTNT
      Staff
      February 1, 2011
      Joru, Have you solved your internet access problem yet? If yes, could you share with us how you solved it? Thanks, L.Clarke
      rmnetops
      rmnetops
      New Member
      February 7, 2011
      To make it easier. Here is the link to the article mentioned above: http://kb.fortinet.com/kb/microsites/search.do?cmd=displayKC&docType=kc&externalId=11971&sliceId=1&docTypeID=DT_KCARTICLE_1_1&dialogID=14243531&stateId=0 0 14241733 If installing with an MSI installer package, you can disable it at install time using this syntax: msiexec.exe /i FortiClient.msi ENABLE_FORTIPROXY=0 /qn
      L_FTNT
      Staff
      L_FTNT
      Staff
      February 8, 2011
      Thanks Joru! It' s good to know that disabling FortiProxy is a workaround fro the issue. In the latest version of FortiClient 4.2.3 build 271, it has a new Diagnostics button under General -> Help and Support. FortiProxy can be enabled/disabled using that button. Cheers, L.C.
      thePunk
      thePunk
      New Member
      July 30, 2021

      Hello!

      I changed the dns server on my host.

      I put it to 8.8.8.8 as dns.

      and internet come back when FortiClient is ON

      P.

      A
      Anonymous_User
      Contributor
      February 19, 2011
      @L.Clarke Sadly, the above mentioned solution didn' t work for me, after i disabled FortiProxy, the filter then disappears, and the user can then freely surf, which is a disaster... Edit: I found the culprit, it' s Avast' s Web Shield, I tried terminating it and everything works fine even when FortiProxy is enabled, but I don' t want to disable it because it might lower the pc' s security.. So, any suggestions?
      rwpatterson
      rwpatterson
      New Member
      February 20, 2011
      Perhaps another AV product won' t knock heads with FCT?
      A
      Anonymous_User
      Contributor
      February 20, 2011
      Already fixed the problem, i just configured Av*st Web Shield' s Transparent Proxy on the web browsers... Thanks for the reply anyway... :)
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