How stupid I was. I found my ip on that website and that was completely
different from 192.......
After finding my ip, I restarted my pptp server using the command "sudo
/etc/init.d/pptpd restart". But, still I am getting the same Error 807 from my
windows machine. The syslog file is not detecting any incoming connection
either. I was wondering that can you please guide me on what else I am doing
wrong here.