There may be times when using any VPN that you find you cannot connect, or you cannot access a particular site. On such occasions, a good step to try is to change the protocol you are using. It may be, for example, that you are away from home, in an airport, hotel, or even at a friend’s house, and the router or firewalls don't permit certain types of protocols through, and they are disabled entirely. Alternatively, you may find a site stops working with the VPN because the site can detect a connection using a particular VPN protocol, but not another.

We have listed the alternative protocols we recommend trying in such circumstances, in the hope that it helps you use our services to greater effect, and get the very most out of your VPN.


    1. OpenVPN GUI.

    2. IKEv2.

    3. L2TP/IPSec.

    4. PPTP.


    1. IKEv2.

    2. OpenVPN (Tunnelblick).

    3. IKEv1 (Cisco IPSec).

    4. L2TP.


    1. IKEv2.

    2. IKEv1 (Cisco IPSec).

    3. L2TP.

    4. OpenVPN Connect.


    1. OpenVPN Connect.

    2. IKEv2.

    3. Cisco IPSec (IKEv1).

    4. L2TP.

The protocols are listed from the strongest to weakest in terms of protection. Click on each protocol to open our guide.