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FortiClient Error Codes

(2020-03-24)

Problem

What does this error code that FortiClient SSLVPN is giving me?

Solution

If FortiClient fails as the following stages, the likely cause is as follows:

  • 10% – Local Network/PC issue
  • 40% – Application or the Fortigate causing the error, occasionally caused by the local machines/network setup
  • 45% – MultiFactor Authentication (also at least one time it stopped here because the firewall couldn't talk to NPS/Radius.)
  • 60% - (One time when it stopped here, the firewall couldn't talk to the LDAP servers to authenticate.)
  • 80% – Username/Password issue (also one time it stopped here because the user account wasn't connected either directly or via a group to a portal that had tunnel mode enabled)
  • 98% – corruption of services/often resolved by reinstalling the client on the laptop.

(Source)

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