The most common cause of "SSH refusal" is old versions of PuTTY on Windows (ciphers changed, no longer compatible) but that's rarely the issue with macOS/Linux clients. Did you enable "disable password auth" in LE settings?
No, I didnt - I always autenticate by password.
BTW, I have other two (older) raspberry at home on the local network, and I can connect to them just fine by ssh...