VPN connection error

Hello Thanachit,

We request you to provide the screenshot of error appearing for AVG Secure VPN.
You can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.
It is also possible for the Internet Service Provide to block VPN connection for your school internet.
We request you to inquire whether this is the situation.
If yes, then it is not possible to connect via our VPN unless the ISP allow VPN access.
Thank you.

I try to connect my VPN on the school internet and it says “ sorry, it is not possible to establish a connection “ plz help!

The VPN work on the school network I have don it but somehow this time it doesn’t work.

Thank you for the info, Thanachit. 

Please refer the below article and follow the steps suggested under "What should I do if AVG Secure VPN is unable to establish a connection?" to check if that helps: 
https://support.avg.com/SupportArticleView?urlname=AVG-Secure-VPN-FAQ