XPS 15 9570, Windows 1809: no bluetooth, no bluetooth in device manager after wake from sleep

After a frustrating afternoon of trying to troubleshooting this, the bluetooth has now magically reappeared. I think the only thing I did that hadn't been mentioned in other threads was that I shut the laptop off completely - power down versus restart. When it came back up, my bluetooth was working properly again and I can see it in the device manager again.

Just to confirm my earlier theory, powering off the laptop completely and then powering it on again has restored my bluetooth.

After having left the machine on overnight, the Bluetooth is gone again after having awakened it this morning. Looking in the system logs from event viewer, I see this message:

The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded.

Slightly before this message, I saw this in the event viewer:

 Miniport Microsoft Wi-Fi Direct Virtual Adapter #2, {227dfb17-909a-4d27-9eba-a5cb2c172e21}, had event Fatal error: The miniport has failed a power transition to operational power

So it seems like the problem is related to when the laptop wakes from sleep. I'll try cold-booting it again, but I use this laptop for work, or at least I try to, and I can't be restarting it every time it wakes from sleep.

This happened to me on an old Lenovo Thinkpad I have. I had left it on until it went into hybernation. When I brought it out of hibernation (have to press the power button at that point to get it back), Bluetooth did not work. I tried a restart, and that just hung so I had to do a forced cold boot. Then everything was fine when it came up. I thought it was just a fluke as I had not noticed that issue happening before, but possibly it is an issue with v1809. Since I rarely use this PC I did not look into it further.

As far as fixing it, you could turn off hibernate and see if that resolves it. I wonder why you would want to leave your computer basically running for several days without shutting it down. It is always a good idea to completely shut it down from time to time as things can accumulate in memory and eventually give you issues. Even the normal "shut down" link on the start menu does not completely shut it down if you have fast startup enabled. Maybe you can get some other comments about this.

JohnD

However, the problem with shutting off hibernation is that you risk draining you battery.

JohnD

I can think of a couple of things to try.

First, look at the Settings-System-Power & sleep and see if there is an option near the middle of the page, "Network connection".  Try setting that to Always so the system won't try to connect during Modern Standby periods.

Next, you might open the Device Manager and set it to view hidden devices.  In the Network Adapters section, the Wi-Fi Direct Virtual Adapters should show up.  If you disable one or both, maybe it would stop the errors.

I have the same issue, on my XPS 9575. It seems to happen when it goes to hibernate. I think if I just reboot the computer the bluetooth device comes back.

Got the same issue today. My XPS 9570 suddenly lost the bluetooth when it woke up from sleep/hybernation. Spent time with the dell support for more than 30 minutes. Initial google search didn't show any solution, but later searched with the windows release number 1890 and found this thread. 

Shutting down the computer completely and starting it again (instead of restart) resolved the issue.

As I mentioned above, I had a similar issue with an old Lenovo laptop, but there was more than Bluetooth that was messed up. When I tried a "restart", that hung so I had to do a cold boot. I have a small workstation which will not come out of hibernation with any Bluetooth device. I have a small wired keyboard that will bring it alive, else I have to press the power button to wake it. I suspect that it may be an issue with Windows 10 v1809.

JohnD

I have a XPS 7590 showing the same issue.

After waking up from standby, the bluetooth device is no longer present in Device Manager. Reboot then, all working fine until next standbuy.

The only bluetooth device connected is my Logitech MX Master 2S mouse.

Tried with latest Windows Updates, Dell Drivers and Killer Drivers.

Any solutions to this problem so far?

Stephan

Your problem has been caused due to the latest firmware update launched by Dell.

I've had problems due to the firmware update as well.

My device freezes very often and for large amount of time.

I was having issues with Connected Standby in Windows 10 (Laptop wouldn't go to sleep properly, fans would continue running or start up every so often, laptop would suddenly wake up completely with screen coming on, SSD performance was slower) so I disabled Connected Standby using the registry tweak (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\CsEnabled set to 0)

All the above issues have been fixed, laptop goes into sleep quickly and normally, doesn't wake up randomly, SSD performance is much better but now I'm having Bluetooth issues....

After waking up the laptop from sleep the Bluetooth device is gone, "disconnected", can't enable it in any way other than restarting the computer.

Below what appears in Device Manager after I show "hidden devices"

"Currently, this hardware device is not connected to the computer. (Code 45)"

I've tried both Dell killer drivers and Intel drivers from Intel website but still the same issue.