Description
This article describes how to connect to SSL VPN as on the first configuration when the following error shows up: 'unable to logon to server username or password might not be configured properly for this connection (-12)'.
Scope
FortiClient.
Solution
When configuring a new SSL VPN connection using a different port than 443, make sure to tick the 'Customize port' box before changing the port.
Indeed, if the port is changed before the box is ticked, the update will not take effect and the error will show up.
Possible Reason for this error:
- When there custom port is not checked on the client side.
- When there is an authentication issue where there is a reachability for the server to authenticate the user.
- Compatibility issue with the FortiOS and the FortiClient.
- Network Connectivity issue.
