CHECK_NRPE: (ssl_err != 5) Error - Could not complete SSL handshake

[nexo1960]

Please check the following post:

After upgrade "CHECK_NRPE: (ssl_err != 5) Error - Could not complete SSL handshake with XXX.XXX.XXX.X: 1" for some Windows hosts

You either need to downgrade nrpe on your server or enhance the security of your clients: https://support.nagios.com/forum/viewtopic.php?f=7&t=55582