FortiClient

Systems

Microsoft

Linux

Unable to establish the vpn connection. The vpn server may be unreachable - FortiClient Error


Please follow the below instruction to resolve the above error.
  • Please check the "TLS 1.1 and TLS 1.2" is disabled in the Internet explorer settings.
    • Go to Internet Explorer an click on the setting. 
    • Select "Internet Options" and go to "Advance" tab.

  • If you are using the old FortiClent versions can getting the above error. Therefor please upgrade to the new version.
  • Make sure you have the internet connection. The 80% of this issue getting by not having the internet connection.
  • If the above options are not working, please contact your IT Help-desk to check the server issues as a hit the traffic at the moment or a any downtime at the server.

Unable to logon to server: Your username or password may not be configured properly for this connection (-12) - FortiClient Error



If you get the error "Unable to logon to server: Your username or password may not be configured properly for this connection (-12)" likewise, there has a few things to check before you connect to the FortiClient in domain environment.


  • First of all please check the your login account is in the locked position or not. If it is locked, please contact your IT help-desk to unlock it.
  • If your login account is expired from the domain most probably get the above error. Therefor, Please contact your IT help-desk and extend the login account period.
  • If your organisation used the custom port number instead of the default, please add it as below.
    • Settings - > Edit the Selection Connection

    • Tick on the "Customize port" and add the port number