1. Check your internet cables to ensure they are properly installed and connected to the computer and modem.
2. Restart your computer, router, and modem.
3. Check for any signal interruption caused by nearby electronics
4. Make sure your VPN client is up to date and VPN settings botth on your computer and router are correct.
5. Check your passwords, username, or any other authentication credentials you may have used, to make sure they are correct.
6. Contact your ISP to make sure your account and internet connection is in good standing.