beta 2.3.1976 and tls1.1

[sfishback]

I was testing beta ver 2.3.1976 windows 64-bit install against our Linux systems using vsftpd v3.0.2-29
I cannot connect with TLSv1.1 disabled(no). Works with it tlsv1.1 enabled(yes). Also, works fine with CoreFTP v2.2 both enabled and disabled.

We have the following on the vsftpd server side:
ssl_sslv2=NO
ssl_sslv3=NO
ssl_tlsv1=NO
ssl_tlsv1=NO
ssl_tlsv1_2=YES

Windows 64-bit Client side v2.3.1976:

Started on Friday July 02, 2021 at 10:17:AM
Resolving rc-ftps-hush.its.unc.edu...
Connect socket #1608 to 172.26.135.9, port 4121...
220 "Welcome to the University of North Carolina."
AUTH SSL
234 Proceed with negotiation.
Started on Friday July 02, 2021 at 10:17:AM
Resolving xxxxxx.xxxx.unc.edu...
Connect socket #1608 to x.x.x.x, port 4121...
220 "Welcome to the University of North Carolina."
AUTH SSL
234 Proceed with negotiation.
<connection fails>

Wanted to report it just in case there is a but that needs to be resolved.

[ForumAdmin]

Try the "AUTH TLS" option instead of "AUTH SSL" and see if that makes any difference.