@tom @spitkowsky
I'm wondering if this may be a HW issue on the VOXL board. Possible the USB or the USB VBUS control is now no longer working correctly, thus not allowing the MH modem USB hub to enumerate (eth0 never seems to be detected, implying a USB hub path issue, but on the VOXL side since the MH HW is known good on another system).
https://docs.modalai.com/expansion-design-guide/#modalai-usb-hub-example
This may be cause for an RMA.
S