SoftEther VPN User Forum

on a few client systems, vpn over dns dont connect
Except antivirus's firewall, what things can block the vpn over dns and how can i resolve it?

and some vpn clients disconnected every 4-5 minutes or less than it

how can i fix this (2) problems?

Hi, DNS Port is 53 UDP , in some contries (for example IRAN) some or all of the UDP port has been blocked.