You must have ESXi enterprise license (Google...) then you need to enable the rule in firewall tab     then you add a serial port to your VM (1024 or 23) : use network server telnet://:23   Then when you start your VM, with putty in telnet mode or any telnet client (WSL) : telnet ESXI_HOST port   example : telnet 192.168.1.140 23   take care about ESXI_HOST, not VM IP.   It should work  
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