Comodo Block dns of vpn

hi my name is soheil
sorry for my bad english
i have a comodo internet security ,
in my computer adsl connected via PPOE connection and ppoe connection share with windows ICS sharing
when i connected vpn connection in my pc , dns server not responding , comodo block a vpn connection , how to slove a problem ??
in panda / avast / norton not probelm , kaspersky / comodo has problem

hey there and welcome!

You have to the current application in trusted files.


hi , thanks
my english is very bad , please help , idont understand “You have to the current application in trusted files.”

look if comodo firewall blocks something. if it does tell me what it blocks