Thread: Blue Tooth dongle not active after being power off

This is a common problem with USB ports under Windows. Do a search on this forum for Devcon, which is a utility from MS that allows you to turn the USB port on after power down or hibernation. It is a little complicated, but the information on how to use this program is there.

Cheers and good luck..

Tried devcon. It did not work. The device just reloads and is not picking up the bluetooth interface. In the device manager, the device is working fine. But in the bluetooth manager, it's still looking for a bluetooth device to be attached.

Pull out the bluetooth dongle, and put it back into the USB port. The bluetooth services are available.

I do notice that when the bluetooth dongle is working, if I reboot the computer. The PC will pick up the dongle and it works perfectly. When the pc is shutdown by the DC-DC power supply, on power up. It's find the dongle, but it's not connected.

It's a completed power off and shutdown.

is your dongle connected to a USB hub? I find that certain usb devices work better when connected straight to the computer's USB input.

I have pulled it into the pc usb connection, then the hub. I added a power adapter to the hub, because I though that it was not getting enough power.

All the same results. I also applied the VIA usb filter patch.

Same out come.....

Tried the widcom drivers, when I discovered this problem.
Then I tried the IVT drivers. Same issue.

On reboots, it's ok if it's active. On power shutdowns, the device is listed as working. But it's disabled, the the little blue bluetooth logo is black and white.

maybe trying a different dongle.. I found my belkin dongle works fine running of the PC.

Try disabling power monitoring of your USB Root Hubs in Windows Device Manager...

Dwaine, also make sure Device Manager isn't set to shut off the dongle. In Device Manager, right-click on the dongle, go to Properties, then the Power Management tab, and make sure the box for 'Allow the Computer to turn this device off to save power' is UNCHECKED.

Originally Posted by Nola111

Dwaine, also make sure Device Manager isn't set to shut off the dongle. In Device Manager, right-click on the dongle, go to Properties, then the Power Management tab, and make sure the box for 'Allow the Computer to turn this device off to save power' is UNCHECKED.

Thanks... I'll check it today and see if it makes a difference.