Snowflake works unreliably in China, 2024 Q1

We have been receiving conflicting report about connectivity interruptions in China.

There was one report from user that highlighted this issue: https://github.com/net4people/bbs/issues/325. We was able to observe similar interruption on our vantage point: https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/bridgestatus/-/blob/dc663e36d7dc81467a63f59c5d435b9f93e9e3ab/recentResult_cnnext#L89 .

The exact way connection get interrupted differ from report to report. The report from github user shows the connection can be established, but was interrupted soon. The report from vantage point show dtls connection handshake was unsuccessful, or the remote server was unreachable.

As of now, the censorship we are observing is decreasing, as some report's subsequent report show successful connection after waiting sufficiently long.