![]() PPTP VPN can be used on any device listed on the setup page PPTP VPN (Point-to-Point Tunneling Protocol) This means there is ‘guaranteed delivery’ of all data, making the protocol very reliable, but there is a considerable overhead as packets are sent, confirmed, re-sent etc., making it quite slow. ![]() ![]() Lower Reliability – On rare occasions UDP can be less reliable that TCP VPN connections as UDP does not guarantee the delivery of packets.Preferred – UDP VPN tunnels are the preferred OpenVPN connection method if your network supports it.For this reason it is the preferred protocol when streaming HD videos or downloading torrents/p2p. Faster Speed – UDP VPN service offers significantly greater speeds than TCP.In general UDP is better for media streaming, VoIP and playing games online. This makes it much faster, but less reliable. UDP is referred to as a ‘stateless protocol’ as it performs no such error correction, simply receiving packets with no acknowledgements or retries. For higher transfer speeds with OpenVPN use UDP Slower Speed – TCP features higher encryption methods that tend to slow transfer rates a little.Usually TCP VPN tunnels can bypass even the most strict corporate firewalls. Bypass Firewalls – TCP VPN tunnels are rarely blocked since they run on common ports (80, 443).Better Reliability – TCP VPN service offers more stable connections as the protocol guarantees delivery of packets.If the server is relatively close-by, then you may not see much of a speed loss, while benefiting from a more reliable connection. The further away you are from your VPN server geographically, the further TCP packets have to travel to and fro, and therefore the slower your connection will be. How much TCP actually slows a connection down in practice can be very dependent on other network factors, with distance being the most important. Whenever a computer sends a network packet using TCP, it waits for confirmation that the packet has arrived before resending the packet (if no confirmation is received), or sending the next packet (if confirmation is received). TCP is in general the most commonly used connection protocol on the internet as it offers error correction (and is therefore known as a ‘stateful protocol’). OpenVpn-TCP (Transmission Control Protocol)
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