Add an iptables rule: iptables -A INPUT -p tcp -m multiport --destination-ports 3350 -i lo -j ACCEPT
Install ssh server: sudo apt-get install openssh-server
Inside dconf-tools - remote-access - Uncheck the option: require-encryption
An excelent client for Windows: MobaXterm
links:
https://helpdeskgeek.com/linux-tips/easiest-way-remotely-connect-linux-mint-os/
https://www.digitalocean.com/community/tutorials/como-instalar-e-configurar-o-vnc-no-ubuntu-16-04-pt
https://www.linode.com/docs/applications/remote-desktop/install-vnc-on-ubuntu-16-04
https://mobaxterm.mobatek.net/download-home-edition.html
https://vivaolinux.com.br/dica/Instalando-e-configurando-servidor-SSH-(Ubuntu)
https://askubuntu.com/questions/803553/sesman-xvnc-doesnt-connect-over-xrdp