AWS EC2 no network

My EC2 is used in China and has had issues since October 16th ping no longer responding

In the past, I have configured EC2 to the router and used it normally.

The current problem is that when I start the VPN connection of the EC2 on the router, the public IP of the EC2 is no longer responding (ping), if I close the connection, the ping responds fine

Or, I configure the VPN of other providers on the router, and then connect the EC2 to the Android mobile phone through the open application, and the public IP (ping) of the EC2 responds normally but there is no network.

I now suspect that the firewall of China is blocking my AWS, is there any solution