1. Check if your bandwidth requirements and the speed of your internet connection can meet the requirements of your VPN connection.

2. Make sure your router and VPN connection are configured properly.

3. Check the settings of your VPN to ensure it is properly connected to your router or modem.

4. Check the software applications that you are running to identify any which may be interfering with your VPN connection.

5. Contact your VPN service provider to see if they can help with the issue.