Errore SSH SDIFTP

Salve, accreditando il canale SDIFTP, da Sogei hanno riscontrato il seguente problema
debug1: Authenticating to xx:xx:xx:xx as ‘XX’
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none
debug1: kex: curve25519-sha256@libssh.org need=64 dh_need=64
debug1: kex: curve25519-sha256@libssh.org need=64 dh_need=64
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:mkeWygZbr+9ys4HeFD2FAhdaS6y/aeDgyFtEaWb6Deo
Host key verification failed.
Couldn’t read packet: Connection reset by peer

Qualcuno ha avuto lo stesso problema, oppure sa come risolverlo? Grazie