PPTP is not as realiable, nor does it recover as quickly as OpenVPN over unstable network connections. Minor compatibility issues with the GRE protocol and some routers. IPSec is more complex than OpenVPN and can require additional configuration between devices behind NAT routers.
May 30, 2019 PPTP vs. L2TP vs. OpenVPN: which one to use TL;DR use OpenVPN ECC with our software for best speed and security mix. If you're connecting from a firewall-restricted network, try OpenVPN XOR with port TCP-443. Avoid PPTP and even L2TP/IPsec. OpenVPN 256-bit AES is kind of overkill, rather use AES 128-bit. PPTP vs IPSec IKEv2 vs OpenVPN vs WireGuard PPTP is not as realiable, nor does it recover as quickly as OpenVPN over unstable network connections. Minor compatibility issues with the GRE protocol and some routers. IPSec is more complex than OpenVPN and can require additional configuration between devices behind NAT routers. Softether vs OpenVPN - Which one is better?
TL;DR use OpenVPN ECC with our software for best speed and security mix. If you're connecting from a firewall-restricted network, try OpenVPN XOR with port TCP-443. Avoid PPTP and even L2TP/IPsec. OpenVPN 256-bit AES is kind of overkill, rather use AES 128-bit.
Dec 01, 2014 PPTP vs OpenVPN - Which one is better for you?
Mar 15, 2016
Mar 02, 2017 security - OpenVPN vs. IPsec - Pros and cons, what to use