All the information on how to troubleshoot the connectivity issues
How to Change VPN Connection Protocol?
Which VPN protocols are being used in TrueVPN?
I cannot connect to VPN. What can I do?
What is KillSwitch?
What is Camouflage Mode?
What is Policy Checks?
TrueVPN’s Click-to-Connect Widget
Change your DNS servers on iOS
Checking the connection configuration on iOS