I try to use FTP server on Windows Server 2012 and in the configuration i try to test the port (21) on a client machine by doing the command ms dos:
telnet 192.168.0.2 21
I have installed the telnet on my windows client and i have installed also the IIS and FTP service on windows 2012 and i checked that the FTP services is autorized by the firwall and all are good.
But at every time , when i try to do : telnet 192.168.0.2 21 + enter it told me that is impossible to do the connexion on the port 21.
in the config of the firewall
Try disabling your windows firewall and/or antivirus