the problem is that I can't connect to VPN trough internet connection, but it works on local network. That's how network looks like: https://i.imgur.com/64AmsRX.png I use no-ip.com service to connect to first router, then It should allow me to connect to vpn on router 2 to access files from computer on router 1 network. All pc's from router 1 and 2 networks have no problem with connecting to VPN. First router is D-Link DWR-921 and it is 192.168.20.1 ip Second router is ASUS RT-AC51U and it is 192.168.21.1 ip For some reason first router can't acess second ones network, but second can acess first.