USB Device not recognized at Computer startup

asked 2018-12-17 12:50:09 +0000

Device is recognized if plugged in after computer has booted

Device not recognized if plugged in before computer powered on, even after unplugging and plugging back in.

Host OS: Linux 16.04.01

Device: PIC24FJ128GB606

MPLab X v5.10

XC16 v1.35

Microchip Code Configurator 3.66

- PIC24 / dsPIC33 / PIC32 MM MCUs (V1.85)

- Foundation services Library (v0.1.30)

- USB Framework Lite (v1.26.1)

Hooked up as per manual page 267, figure 20-3

attached are 2 Wireshark captures. 1 of the device working, 1 of it not working.

You can see the 2 captures are pretty much the same up till Frame 49. But I can't see what the problem is or how to fix it.

WireShark Capture plugged in after boot

WireShark Capture plugged in during boot

Any help is greatly appreciated.

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