DescriptionThis article describes how to connect to SSL VPN as on 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)'
SolutionWhen 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.