SSL issue - using rancher haproxy

Getting an issue where openssl is not valid for our one deploy (but was working prior, and still works for another).

openssl s_client -connect problem.com:443
CONNECTED(00000003)
4348:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:/SourceCache/OpenSSL098/OpenSSL098-52.30.1/src/ssl/s23_lib.c:185: