We have a fairly simple software tool which has been running on a laptop with a USB-to-CAN V2 without problems for over a year. Suddenly in May 2021, it stopped working.
We’ve reinstalled Windows 10 from scratch, installed the VCI 4 driver, and retried with the same results. In our software and in CANanalyser, it appears as though both channels are disconnected Both channels behave identically (no activity) if I try to send a message on CANanalyser.
I’m able to use the same USB-to-CAN V2 several other laptops running Windows 10 and if I send a message on channel 0 in CANanalyser I see some activity.
The other laptops I tested on are running Windows 10 Enterprise 18363. The laptop where it’s not working is running Windows 10 Professional build 19042 which lines up with the issue starting in May…
I’m planning to try a few of the troubleshooting tips suggested here in the next week. I’ll try updating the firmware on the USB-to-CAN V2 and I’ll try running it using a powered USB hub.
Wondering if anyone here can help me understand whether there is a known issue introduced by the recent Windows release which may have caused the device to stop working suddenly only on that laptop.