¶ FortiClient VPN Timeout Connection
If you experience a time-out connection when trying to connect via the FortiGate VPN Client, please follow these steps:
Solution:
Please change the following parameters:
1. Open the FortiGate VPN Client and click Edit the selected connection.
2. Expand + Advanced Settings
3. Under Phase 1 → DH Group, deselect all options and select only 20.
4. Under Phase 2 → DH Group, select 20.
5. Click Save.
6. Try to connect again.