RE : [stunnel-users] "SSL_read returned WANT_READ: retrying" at 30Hz

It's a well-known bug in cygwin library (used by rsync on Windows).

Thanks. I worked around the issue setting a timeout of 5 minutes on every state (idle, busy, close, connect...) and doing rsync in a loop. While it's not a perfect solution, it works well enough for me. -- Vincent