I'm using Kitty (putty clone) and Keepass agent (similar to pagent). Keepass agent contains 5 ssh keys.
This setup works fine with all linux boxes I've encountered so far, connection to our new RHEL7 linux box fails with
type 2 (protocol error): "Too many authentication failures for ..."
to /etc/ssh/sshd_config and did a
systemctl restart sshd.service
but the error remains.