https://bugs.winehq.org/show_bug.cgi?id=50545
--- Comment #6 from Dmitry Timoshkov dmitry@baikal.ru --- (In reply to Richard from comment #4)
Created attachment 69216 [details] Requested log file
Thanks. Do you have libsasl2/libsasl2-plugin-gssapi (both 64 and 32-bit) packages installed? Also, are you connecting using kerberos?
In any case it's mostly impossible to remotely debug such configurations.