

I assume this is because, in addition to the missing ciphers as referenced in the linked article, OpenVPN, even though it uses TLS, it initially uses a very identifiable handshake before initiating TLS, which is not hard to block. I have personally had problems specifically with OpenVPN being targeted/blocked in this way.


Yea every network may do things differently… in my case tcp/443 openvpn is blocked at several places that I frequent.