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20.1 Legacy Series / MiFi 8000 USB connectivity issues

« on: June 12, 2020, 08:07:32 pm »

I'm trying to attach a MiFi 8000 LTE hotspot (from calyxinstitute.org) to my fitlet2 (https://fit-iot.com/web/products/fitlet2/) running opnsense and use it as a fallback source of internet.
I am running OPNsense 20.1.7-amd64.

Whenever I connect it, for about 5 seconds I get the "ue0" interface, but then it immediately disappears.
The device itself will ask me if I want charging or charging+tethering. Tethering is the default when I plug it in and it doesn't seem to change.

This is the matching dmesg output:

ugen0.2: <Novatel Wireless MiFi 8000> at usbus0
cdce0 on uhub0
cdce0: <CDC Ethernet Control Model ECM> on usbus0
ue0: <USB Ethernet> on cdce0
ue0: Ethernet address: 00:15:ff:xx:xx:xx
uhid0 on uhub0
uhid0: <HID Interface> on usbus0
ugen0.2: <Novatel Wireless MiFi 8000> at usbus0 (disconnected)
cdce0: at uhub0, port 10, addr 27 (disconnected)
cdce0: detached
uhid0: at uhub0, port 10, addr 27 (disconnected)
uhid0: detached

usbconfig output:

# usbconfig
ugen0.1: <0x8086 XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=SAVE (0mA)
ugen0.2: <Novatel Wireless MiFi 8000> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=ON (224mA)

It seems that the code to support it was pulled in with 20.1.7: https://github.com/opnsense/changelog/blob/master/doc/20.1/20.1.7

Specifically this commit: https://github.com/opnsense/src/commit/f3b129a428da2600853c67667ce6229572207076

Anyone got an idea about why it might just disappear?