Article ID : S500018481 / Last Modified : 11/04/2018

What to do when Bluetooth wireless technology devices do not automatically connect after the computer returns from hibernation or sleep mode?

Bluetooth wireless technology devices do not automatically connect after the computer returns from hibernation or sleep mode.

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There are default configuration settings that get triggered when the computer enters hibernation or sleep mode which can disconnect Bluetooth devices, prevent those devices from automatically reconnecting, or prevent new Bluetooth devices from being discovered. This will occur even with devices that have already been successfully paired with the computer. Follow these steps to change the configuration settings and allow Bluetooth devices to remain active and connected even when the computer enters hibernation or sleep mode.

IMPORTANT:

As a result of making these configuration settings changes, you may notice that the overall amount of time a fully charged battery lasts before needing another recharge is less than before the changes were applied. This is the expected behaviour because the Bluetooth connections constantly remain active and will require additional power to do so.
Before beginning this procedure, download and install all available driver and system updates.
1. Click Start and click Control Panel.
2. In the Control Panel window, click Hardware and Sound.
3. In the Hardware and Sound window, under Devices and Printers, click Device Manager.
4. In the Device Manager window, double-click Bluetooth Radios.
5. Under Bluetooth Radios, double-click Generic Bluetooth Adaptor.
6. In the Generic Bluetooth Adaptor Properties window, click the Power Management tab.
7. On the Power Management tab, click to remove the check next to Allow the computer to turn off the device to save power, and then click the OK button.
8. In the Device Manager window, click the X in the upper right corner to close the window.
9. In the Hardware and Sound window, click Power Options.
10. In the Power Options window, next to the currently selected Power plan, click Change plan settings.
11. In the Edit Plan Settings window, click Change advanced power settings.
12. In the Power Options window, double-click USB settings.
13. Under USB settings, double-click USB selective suspend setting.
14. Under USB selective suspend setting, click to select On battery, click the down arrow next to Enabled, and then click Disabled.
15. Under On battery, click to select Plugged in, click the down arrow next to Enabled, and then click Disabled
      http://146.215.126.38/vaio/attachments/win7/pic6.png 

16. Double-click Wireless Adapter Settings.
17. Under Wireless Adapter Settings, double-click Power Saving Mode.
18. Under Power Saving Mode, click to select On battery, click the down arrow, and then click Maximum Performance.
19. Under On battery, click to select Plugged in, click the down arrow, and then click Maximum Performance
      http://146.215.126.38/vaio/attachments/win7/pic6.png 

20. In the Power Options window, click the OK button.
21. In the Edit Plan Settings window, click the X in the upper right corner to close the window.
22. Restart the computer.