SSL VPN FortiClient error: "SSLVPN tunnel connection failed (Error=-12)"
We have an issue using the SSL VPN: for some unknown reasons it is impossible to launch the VPN on certain wireless networks...
We get the following error:
"Unable to establish the VPN connection. The VPN server may be unreachable. (-5)" (Image attached 1.jpg)
It stucks at 40%...
We are using port 443, the FortiClient is launched on startup (Windows 7).
We also have Kaspersky KES 11 installed.
A strange behavior is also that the SSL VPN URL is not accessible.
We tried using both URL and IP directly, but both are not working in those cases.
We are able to ping the IP though...
Do you have ideas for further troubleshooting?
Thanks for your help.