I ran into that error message with a different application and it turned out that the server certificate was expired.
-- Doug > On 8 December 2018, at 12:22, David Gardner <somloiea...@gmail.com> wrote: > > Have you tried connecting with openssl c_client, with a cypher list of all? > > My suspicion is that one of the pair of programs is only > using old, weak cyphers [due to age and the other only strong ones. > > > David