Bootstrapping of a client using the webUI fails with error: Permission denied (keyboard-interactive). scp: Connection closed

SUSE Multi Linux Manager 5

Bootstrapping a client using SUSE Multi Linux Manager webUI fails with following error message: 

Bootstrapping a server fails with error:
root@somedomain.com: Permission denied (keyboard-interactive).
scp: Connection closed

Registration of a client using bootstrap script works without any issues.

Either comment following two options in /etc/ssh/sshd_config configuration file on top of affected client: 

PasswordAuthentication no
PubkeyAuthentication no

...and restart the sshd.service or set both option to yes:

PasswordAuthentication yes
PubkeyAuthentication yes

...and then restart the sshd.service.

The affected client system is missing sshd authentication methods needed for proper client registration.

The sshd authentication methods can be tested by using the scp command (which is used during the bootstrapping process) from SUSE Multi Linux Manager to to affected client:

uyuni-server:~ # touch /tmp/tmpe9gdoxum

uyuni-server:~ # scp -o KbdInteractiveAuthentication=no -o PasswordAuthentication=yes -o GSSAPIAuthentication=no -o ConnectTimeout=180 -o ServerAliveInterval=60 -o ServerAliveCountMax=3 -o StrictHostKeyChecking=no -o Port=22 -o IdentityFile=/var/lib/salt/.ssh/mgr_ssh_id -o User=root  /tmp/tmpe9gdoxum 10.156.233.224:.tmpe9gdoxum
root@10.156.233.224: Permission denied (keyboard-interactive).
scp: Connection closed