[greenhorn]

I have both 6154 clones - the red VNCI and grey 6154 and both of them seem to work properly for me. The red VNCI needs his own driver, the gray 6154 works out of the box as an original 6154A.
For flashing I use it hooked to USB cables, for coding and simple diag jobs I use it by wifi - the connection is stable, no issues even after 30 or more minutes being connected.

I was only unable to get it working in infrastructure WLAN mode - I can't get both of them connecting to my own wifi, they work only in adhoc/direct access point mode. I tried to press the button on both of the devices, it just beeps and the leds are blinking different way, but no connection to wifi.

both works without issue in infrastructure WLAN mode and adhoc/direct access.... I have both of them and use the switch to switch between WLAN client and adhoc.