UR12 not starting after computer sleep

I’ve got a new computer (Window 11) and since then I’ve been facing a problem that my UR12 is not waking up properly from sleep.

I’ve changed a lot of settings (the computer cannot turn off USB, the power plan doesn’t affect the USB etc.), but nothing seems to work. A restart works every time, but that’s not a good solution.

I’ve reinstalled the Yamaha driver many times, but it didn’t change anything. Any ideas?

I’ve read that the BIOS might be a problem, but I don’t know how to deal with it, and I didn’t need to on the old computer.

Thanks a lot for your help!

Welcome to the Forum

Do you have a power supply connected to the UR12, or is it just USB power?

I guess you have tried to connect it to different USB ports. What happens if you simply disconnect the USB cable, instead of a reboot, and reconnect it after some seconds?

Does it come back in that case?

Modern computer can change a ton of parameters in the BIOS, but I haven’t changed anything in my machine, because there was no problem. So I have no idea where to look here, except for settings related to USB hardware.

  1. It’s just USB Power
  2. It doesn’t help to disconnect and reconnect the cable.

Thank you!

What about the driver, what does the Device Manager in Windows show when your computer comes back from sleep? Is the driver shown as active, or is it deactivated?

Do you have the latest USB driver for the UR12?

It writes “This device cannot start (code 10) Insufficient system resources exist to complete the API”

I have the latest driver for the UR12, yes

Please make sure that the firmware of the UR12 is updated as well. One can’t work without the other:

This seems to be a problem with the installed drivers in your Windows system. There are several reports in the internet on how to find the reason. For example this

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Thanks a lot, I’ll have a look!