Hi there! I understand that your YPT app only works when you use a VPN on your iPhone running iOS 18.5. To get a clearer picture, could you tell me a bit more? For example:

- Are you connected to the same Wi-Fi network when trying without the VPN?
- Have you tried using cellular data without the VPN?
- Is there any specific error message appearing when you try without the VPN?

Based on what you’ve shared so far, it sounds like there might be network restrictions or regional blocking affecting the app's connection without a VPN. Let me walk you through some steps to troubleshoot this:

1. Check Network Connection
Ensure your iPhone is connected to a stable Wi-Fi or cellular network. Try opening a website in Safari to confirm internet connectivity without VPN.

2. Test on Different Networks
Sometimes, certain Wi-Fi networks block specific services. Try connecting to a different Wi-Fi (like a friend’s or public hotspot) or use cellular data without VPN and see if the app works.

3. Restart Your iPhone
A quick restart can clear any temporary glitches affecting network functions.

4. Reset Network Settings
If the problem persists, resetting network settings can help:
- Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
- Note this will clear saved Wi-Fi passwords, so be ready to reconnect.

5. Check for App & iOS Updates
Make sure the YPT app and your iOS are both updated to the latest versions, as bugs get fixed frequently.

6. Check if the App is Region-Locked
Sometimes apps restrict access by country, which is why a VPN helps. If possible, you might want to check YPT’s support for any regional access limitations.

7. Review VPN Settings
If your network requires a VPN due to restrictions, verify with your network administrator or internet provider if certain ports or URLs used by YPT are blocked.

If after these steps your YPT app still only works with VPN, it might be a network-level restriction or the app might be geo-blocked in your area. You could also check the YPT official forums where users reported similar issues without VPN and see if any server outages or fixes are posted1.

Could you please try these and let me know what you observe? I’m here to help you get it sorted!