Recently I was involved with configuring few old generation 7 HP servers. I wanted to install ESXi server on the same as well upgrading firmware, This was required ILO to be working. when checked using Internet explorer I got issue this page can't be displayed (before loading it was showing certificate error on the page). This issue was for across all the HP ilo servers. Even tried using Google Chrome but the same issue this site can't be reached.

To diagnose and troubleshoot issue further, I used Port Query tool and ping, 80 and 443 ports were listening and no firewall blocking issue found, Everything was green and no communication issue found. I observed Google chrome error ERR_SSL_BAD_RECORD_MAC_ALERT and tried to concentrate on the same.

Error ERR_SSL_BAD_RECORD_MAC_ALERT represents, google chrome  doesn't support SSL/TLS 1.0 protocol, It means this link will open on internet explorer with few settings, On the IE click settings button, choose Internet Options, In the Advanced tab, uncheck Use TLS 1.0, 1.1 and 1.2 and check Use SSL 2.0 and 3.0.

Once complete settings is done, reopen refresh (delete cache) IE, and you will see ILO (Integrated Lights-Out) web page is loaded successfully.

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