Wireguard Client Connected to Server but no Internet

I just communicated with my colleague. Please refer to this first to see if it is caused by this reason. If not, we can help you solve it remotely laterhttps://forum.gl-inet.com/t/wireguard-vpn-server-not-working-client-connecting-but-nothing-loads-openvpn-works-fine/28947/18?u=hansome