Hi,
It's simply hangs with no error message until it crashes out after a few minutes with the message "Authentication failed". The log auth.log doesn't have any recent entries in.
~> ssh -vvv myHOSTNAME -l root -p YYYY
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017
debug1: Reading configuration data /homes/myUSER/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug2: resolving "myHOSTNAME" port YYYY
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to myHOSTNAME [AAA.BBB.CCC.DDD] port YYYY.
debug1: Connection established.
debug1: identity file /homes/myUSER/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /homes/myUSER/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.0-hpn14v15
debug1: match: OpenSSH_8.0-hpn14v15 pat OpenSSH* compat 0x04000000
debug2: fd 4 setting O_NONBLOCK
debug1: Authenticating to myHOSTNAME:YYYY as 'root'
debug3: put_host_port: [myHOSTNAME]:YYYY
debug3: hostkeys_foreach: reading file "/homes/myUSER/.ssh/known_hosts"
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,
curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1,ext-info-c
debug2: host key algorithms:
ecdsa-sha2-nistp256-cert-v01@openssh.com,
ecdsa-sha2-nistp384-cert-v01@openssh.com,
ecdsa-sha2-nistp521-cert-v01@openssh.com,
ssh-ed25519-cert-v01@openssh.com,
ssh-rsa-cert-v01@openssh.com,
ssh-dss-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss
debug2: ciphers ctos:
chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes128-gcm@openssh.com,
aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc:
chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes128-gcm@openssh.com,
aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos:
umac-64-etm@openssh.com,
umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,
hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,
umac-64@openssh.com,
umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-64-etm@openssh.com,
umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,
hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,
umac-64@openssh.com,
umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,
zlib@openssh.com,zlib
debug2: compression stoc: none,
zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,
curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos:
chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes128-gcm@openssh.com,
aes256-gcm@openssh.com,aes128-cbc,none
debug2: ciphers stoc:
chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
aes128-gcm@openssh.com,
aes256-gcm@openssh.com,aes128-cbc,none
debug2: MACs ctos:
umac-64-etm@openssh.com,
umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,
hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,
umac-64@openssh.com,
umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc:
umac-64-etm@openssh.com,
umac-128-etm@openssh.com,
hmac-sha2-256-etm@openssh.com,
hmac-sha2-512-etm@openssh.com,
hmac-sha1-etm@openssh.com,
umac-64@openssh.com,
umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher:
chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher:
chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:Gc+JABv4udZ9pIT8+Kk46WVfdao0Otpkit5KCrhwNwc
debug3: put_host_port: [AAA.BBB.CCC.DDD]:YYYY
debug3: put_host_port: [myHOSTNAME]:YYYY
debug3: hostkeys_foreach: reading file "/homes/myUSER/.ssh/known_hosts"
debug3: hostkeys_foreach: reading file "/homes/myUSER/.ssh/known_hosts"
debug1: checking without port identifier
debug3: hostkeys_foreach: reading file "/homes/myUSER/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /homes/myUSER/.ssh/known_hosts:260
debug3: load_hostkeys: loaded 1 keys from myHOSTNAME
debug3: hostkeys_foreach: reading file "/homes/myUSER/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /homes/myUSER/.ssh/known_hosts:257
debug3: load_hostkeys: loaded 1 keys from AAA.BBB.CCC.DDD
debug1: Host 'myHOSTNAME' is known and matches the ECDSA host key.
debug1: Found key in /homes/myUSER/.ssh/known_hosts:260
debug1: found matching key w/out port
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /homes/myUSER/.ssh/id_rsa (0x56072c99ce70)
debug2: key: /homes/myUSER/.ssh/id_dsa ((nil))
debug2: key: /homes/myUSER/.ssh/id_ecdsa ((nil))
debug2: key: /homes/myUSER/.ssh/id_ed25519 ((nil))
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /homes/myUSER/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: pkalg rsa-sha2-512 blen 277
debug2: input_userauth_pk_ok: fp SHA256:Kz/0hyVeOOlMmpLYE9B8RSn6IAW9B4e4MGHWvq7177s
debug3: sign_and_send_pubkey: RSA SHA256:Kz/0hyVeOOlMmpLYE9B8RSn6IAW9B4e4MGHWvq7177s
debug3: send packet: type 50
Authentication failed.