To resolve the "no connection to server" issue with the TeleGuard app, you can follow these steps:

1. Check Internet Connection: Ensure that your device has a stable internet connection. You may want to switch between Wi-Fi and cellular data to see if the issue persists.

2. Inspect App Store Comments: Go to the TeleGuard app page in the App Store and look through the comments and ratings. Other users may have reported similar issues and shared potential solutions or provided feedback about server connectivity problems - learn more.

3. Update the App: Make sure that you are using the latest version of TeleGuard. If there is an update available, install it as updates often fix bugs and connectivity issues.

4. Restart Your Device: Sometimes, a simple restart can resolve connectivity issues. Power off your device for a few seconds, then turn it back on.

5. Check Server Status: Look for reports on server status both within the TeleGuard app and on platforms like Downdetector. This can help you determine if the issue is widespread and not just on your device - learn more.

6. Contact Support: If the problem persists, you can visit the TeleGuard support page for assistance. They provide helpful tips and troubleshooting steps for common issues, which can help address connection problems - learn more.

7. Community Feedback: Consider visiting platforms like Reddit, where users may discuss their experiences and solutions. Look for threads focused on TeleGuard and connectivity issues to gather more insights - learn more.

By following these steps, you should be able to identify and potentially resolve the "no connection to server" issue with TeleGuard. If all else fails, awaiting an official response from the app's developers may be necessary if a server issue is confirmed.