When a system running on VMware ESXi is blocked without displaying any error, the first step to perform is to understand the exact reason.
VMware provides 2 articles to start problem determination and troubleshooting:
IPMI Utilities can help to continue the investigation process and can be downloaded here:
Once IPMI Utilities are installed, you can run the following command:
IPMI command – ipmitool -I lan -H <RemoteServerBMCAddress> -U <Username> ipmi power diag
Example: ipmitool -I lan -H 192.168.5.153 -U ADMIN ADMIN ipmi power diag
As output you should get a PSOD (Purple Screen of Death) directly on your IPMI console: