Actually , shadowsocks can be easily detected and got blocked nowadays , try to use V2Ray instead . Here is the website : https://www.v2ray.com/en/index.html

Shadowsocks usually works fine. Source: I'm posting though it right now.

GFW enforcement varies considerably by provider and region. In my experience, 广东省 is less strict than most other provinces.

This looks quite good. I'll try it next time I'm in China, thank you.