icinga2 monitoring + check esxi_hardware.py = (0, 'Socket error: [Errno 110] Connection timed out')

I have tried to use the check_esxi_hardware.py python script but im not getting any answers.

This is the command im using:

python check_esxi_hardware.py -H https://10.x.x.x:5988 -U 'root' -P 'blablah' -v

This is the answer im getting:

20180423 16:12:40 LCD Status: True

20180423 16:12:40 Connection to https://10.x.x.x

20180423 16:12:40 Found pywbem version 0.8.0~dev

20180423 16:12:40 Check classe OMC_SMASHFirmwareIdentity

UNKNOWN: (0, 'Socket error: [Errno 110] Connection timed out')

I have found this old topic with the same problem:

Monitor hardware on ESXi with Python script

I already restarted the CIM via shell and GUI like suggested here:

https://www.claudiokuenzler.com/blog/308/check-esxi-hardware-faq-frequently-asked-questions

Any ideas?

Latest debian + ESXI 6.0