Hello,
I have installed a moxa cp-114EL multiport serial board in a hp server dl380 g9 with vmware esxi 6.5.
I've created a windows server 2012 R2 virtual machine with the card configured in direct I/O (passthroug).
The card is well recognized and installed by the windows server with latest drivers and all the com ports are ok,
but when i open the port com, no data is received.
When trying the card directly in a physical windows 7, the transmission is ok.
Do you have an idea of what can block communication?
esxi log can he give me informations ?
Can windows server security possibly block serial communication?
Thank you very much.