4 USB-Blasters keep getting assigned different indexes when using quartus_jli.exe (system power cycle or not). How can I programmatically find out the correct index to use for each device?

We are developing an automated test system that needs to run JTAG scripts using 4 USB-Blasters (1 per product). We are running scripts using quartus_jli.exe and we need to specify the correct device index, in order to use the right hardware. Problem is that the indexes seem to be changing after system power cycles or just while running testing.

We have tried obtaining the Device ID values, which seem unique in Windows. But the order the Device ID values appear seems consistent, while the quartus_jli.exe device enumeration keeps changing.

Is there a better property to be used for this? What does quartus_jli.exe use to enumerate the devices?

We are running scripts using CMD:

<quartus_jli.exe path> -c N <JAM file path> -a p

Where N is the device index (1 to 4 in our case).

We can obtain the list of devices by running in CMD:

<quartus_jli.exe path> -n

But this gives very little information on what devices is which index. Any pointers would be highly appreciated!