Procedure
1. Go to Network and Internet
2. Look for VPN
3. Click add a VPN Connection
Choose options:
VPN provider: Windows (built-in)
Connection Name: SH VPN and ST VPN
Server name or address: sh.vpn.fxp.sg and st.vpn.fxp.sg
VPN Type: L2TP/IPsec with pre-shared key
Pre-shared key: fxpsg
Type of sign-in info: user name and password
User name: their AD user account
Password: their AD user password
4. Go to Change adapter options:
Look for the VPN connection
Right click and choose Properties
Go to Security
Make sure the Type of VPN is set to L2TP/IPsec
Make sure the Data encryption is set to Required encryption
Click Okay/Apply
5. Test to connect if connected all good