vpn connection issue IOS

. Check AWS VPC Configuration:

Security Groups: Ensure the security group associated with your VPN instance allows incoming traffic on the appropriate VPN port (typically UDP port 1194 for OpenVPN). Double-check that the source for this rule is either your public IP address (for testing) or the subnet where you expect your devices to connect from.

Route Tables: Verify that the route table for your VPC subnet routes traffic destined for the VPN endpoint to the VPN instance's private IP address.

2. Verify VPN Details:

Client Configuration: Make sure you're using the correct VPN endpoint address or hostname in your iPhone's VPN settings. This information should be provided by the CloudFormation stack outputs.

Credentials: Double-check that the username and password you're entering on your iPhone match the credentials configured for VPN access on the AWS side.

3. General Troubleshooting:

**Restart Devices: **A simple restart of your iPhone and the AWS instance running the VPN server can sometimes resolve temporary glitches.

Test from Different Device: Try connecting to the VPN from your Macbook to see if the issue is specific to your iPhone or a wider problem.

**Check Network Connectivity: **Ensure your iPhone has a stable internet connection. Briefly try disabling cellular data and connecting only through Wi-Fi to isolate any network issues.

4. Advanced Troubleshooting:

**VPN Logs: **If the above steps don't help, consult the VPN server logs on the AWS instance for any error messages that might indicate the cause of the connection failure.

AWS documentation on VPC connectivity: https://docs.aws.amazon.com/vpc/ Troubleshooting VPN on iPhone: https://www.comparitech.com/blog/vpn-privacy/netflix-proxy-error/