Hi there! Thanks for reaching out. I understand that you're having trouble with the TeleGuard app showing "no connection to server." To help you better, could you please tell me a bit more? For example:

- Are you seeing this issue on a PC, phone, or another device?
- Has it worked before on this device, or is this your first time trying?
- Do you have an active internet connection otherwise?
- Have you tried any steps already to fix the issue?

This will help me guide you effectively. Meanwhile, I’ll start with some common fixes for this problem on Windows 10 with the WebKit browser:

1. Check Your Internet Connection
Make sure your device is online and that other websites or apps can reach the internet.

2. Restart the TeleGuard app
Close the app completely. Since you’re on Windows, you can open Task Manager (Ctrl + Shift + Esc), find TeleGuard, and end the task. Then reopen the app.

3. Check for Updates
Ensure your TeleGuard app and your operating system are up to date, as outdated apps can sometimes fail to connect.

4. Firewall or Antivirus Settings
Sometimes security software blocks the app’s access to the internet. Temporarily disable any firewall or antivirus software to test if TeleGuard can connect.

5. Restart Your Device
A simple reboot of your PC can refresh network connections and clear temporary issues.

If you’ve tried any of these already or if the problem persists, let me know so I can guide you through more advanced steps or check if there might be server-side issues.

Are you able to try these and tell me how it goes?