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I have a Debian VPS and I know about PPTP. I have followed the installation process as what is stated here:

However, when I tried to connect to this VPN with my Windows computer through Network and Sharing Center (Control Panel\Network and Internet\Network and Sharing Center), I get an error message: Error 619: A connection to the remote computer could not be established, so the port used for the connection was closed.

I have followed instructions here: 9dQ"> on how to connect using a Windows 8 computer (I am using Windows 8 now).

My credentials used are correct.

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why not using openvpn? i won't say it is the best, that'd be subjective but i can tell you that all the major vpn providers use it – Lynob Nov 8 '13 at 16:56
  • Verify that you can ping or otherwise reach your VPS's public IP, and that current Internet connection isn't blocking the outgoing PPTP port. If you are using a cellular 3G connection this may be likely.

  • Check if pptpd is running. Check ps aux for a ptppd process. If you don't see any, look in /var/log/daemon.log for a reason why it may have failed to start. Try a /etc/init.d/ptppd start or service start ptppd.

  • Your iptables configuration also has to allow incoming connections on the PPTP port 1723. You may need to add a iptables -A INPUT -p tcp --dport 1723 -j ACCEPT to your rc.local as well.

  • If the IP ranges here localip remoteip are the same ones as your network (which may happen if you are behind a typical consumer router NAT), this could cause issues. You should select a different subnet such as

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