Seems to me that you can use the KONI for transferring files to the KRC4... what do you think?
Yes, you can.
I use KONI almost every working day to transfer files via SMB, as well as to connect to my network applications or remote desktop.
Even WorkVisual finds the control system through KONI, although I haven't tried to work with it fully.
I have already described how to achieve this.
It's a weekend and I can't take a screenshot from a real system because it's at my work.
But I will try to clarify it again. You can see several devices in the Device Manager under "Network Adapters".
One of them is KONI with the "wrong" driver.
All you need to do is to initiate the driver update process and specify the path to one of the folders on disk D where the "correct" driver lies.
It will have the word "Intel" in its name because all network interfaces in the motherboard of the control system are built on Intel chips.
After that, a normal network device will appear in Windows with the ability to specify an IP address, subnet mask, and gateway.
But be careful, the control system's firewall is disabled by default.
And I am not sure that you can turn it on because there is a lot of service network exchange going on in the system.
All this makes the system vulnerable to external network attacks through KONI.