Check the DevInd of the connected USB device:

[12:47:17] ABILIS_CPX:debug usbdev lsn:1

-------------------------------------------------------------------------------
BufferLength:819    Date/Time:24/11/2017 12:50:06 TraceTime:440652

USB SUBSYSTEM: Device table
------+--------+--------------------+-----------------------+---------+------
DevInd|  Handle|Manufacturer        |Product                |UsbPort  |DrvInd
------+--------+--------------------+-----------------------+---------+------
     1|205246A0|On Time             |EHCI Virtual Root Hub  |0        |     -
     2|205332D4|On Time             |UHCI Virtual Root Hub  |1        |     -
     3|205759C8|On Time             |UHCI Virtual Root Hub  |2        |     -
     4|20608630|On Time             |UHCI Virtual Root Hub  |3        |     -
     5|36FD4ED4|Generic             |External               |0.1      |     -
     6|2A2DCD58|ASIX Elec. Corp.    |AX88772B               |0.4      |    11
------+--------+--------------------+-----------------------+---------+------

Type the reset command, specifying the DevInd:

[12:50:06] ABILIS_CPX:debug usbdev lsn:255 cmd:D6

-------------------------------------------------------------------------------
BufferLength:32     Date/Time:24/11/2017 13:00:16 TraceTime:1050680

USB device successfully reset.

Optional, check if the USB device has been restarted:

[13:00:46] ABILIS_CPX:debug usbdev lsn:233

-------------------------------------------------------------------------------
BufferLength:5825   Date/Time:24/11/2017 13:03:47 TraceTime:1261122

...
--------|-----------------|------------------------------------------------------
     12 |     1105,776212 | RESET-DRV              | 0.4        |           0
        | 241117 130046   |  36FD652C  | 0B95 772B | AX88772B
        |                 |        985 |           |
--------|-----------------|------------------------------------------------------
     13 |     1105,779170 | DISCONNECT             | 0          |           0
        | 241117 130046   |  36FD652C  | 0B95 772B | Unkn Dev (disconnected)
        |                 |        895 |           |
--------|-----------------|------------------------------------------------------
     14 |     1106,462071 | CONNECT                | 0.4        |           0
        | 241117 130046   |  36FD65B0  | 0B95 772B | AX88772B
        |                 |        840 |           |
--------|-----------------|------------------------------------------------------