SOLVED Bluetooth connection problem after W10 1903 upgrade

[52Yankee]

I have a Bose headset used with a bluetooth dongle that has not worked since the upgrade to W10 1903. I have done all the items suggested in various Google hits and even Microsoft's Virtual Assistant. There are no newer drivers available for the dongle. I even purchased a new dongle and plugged it in and still no connection works. The Bluetooth USB Module entry in device manager has a cannot start code(10). Bluetooth is functional on the PC and shows the headset paired but that's all. When I try to connect from the sound settings I don't even see an error it just does not work. Things were working prior to W10 1903 upgrade and whatever updates were also installed at that time.
PC Acer Aspire TC-120
Windows 10 Home Version 1903
Headset Bose
Drivers are from Qualcomm 6/20/2018
Has anyone successfully gotten their Bluetooth stuff to work once it fails after W10 1903 upgrade?

 

[bassfisher6522]

What are the blutooth dongles you're using....make/model?

 

[Bighorn]

Also check the version of the USB ports, may need to assure using USB 2 [usually black center piece] rather than USB 3 [usually blue center piece].

 

[52Yankee]

What are the bluetooth dongles you're using....make/model?

1st dongle Targus ACB75A
2nd dongle Avantree BTDG-40S


The ports are black and I've tried many of them.

 

[bassfisher6522]

Are you sure you downloaded the right driver version for the Targus dongle.

Targus Bluetooth® 5.3 Dual mode Micro USB Adapter

Enables Windows 11/10/8.1/7 Laptop or Tablet with Bluetooth connectivity. Supports Bluetooth Low Energy (BLE) and EDR compliant devices with a working distance of 10 meters. Supported profiles: HSP, SDP, GAP, SVP. FTP, SDAP, AVCTP, ACRCP, DUN, OPP,GAVDP, AVDP, PAN, HCRP, HRD, A2DP, HFP where...

www.targus.com

 

[52Yankee]

Are you sure you downloaded the right driver version for the Targus dongle.

Targus Bluetooth® 5.3 Dual mode Micro USB Adapter

Enables Windows 11/10/8.1/7 Laptop or Tablet with Bluetooth connectivity. Supports Bluetooth Low Energy (BLE) and EDR compliant devices with a working distance of 10 meters. Supported profiles: HSP, SDP, GAP, SVP. FTP, SDAP, AVCTP, ACRCP, DUN, OPP,GAVDP, AVDP, PAN, HCRP, HRD, A2DP, HFP where...

www.targus.com

Windows did it.

Tonight I tumbled to something that has bothered me since everything quit for my bluetooth headphones etc. In the event log there has been two entries every time I boot that are yellow triangles. One is saying the adapter does not support Low Energy mode. The other says there can only be one bluetooth adapter. My PC has a bluetooth setup without the dongle. Way back when I got the head phones the pairing worked and everything was ok until W10 1903. I wondered if W10 now does not support two bluetooth adapters. If it doesn't then maybe the headphones were orginially paired with the dongle and now it is not supported. I removed the paired headphones from the bluetooth screen and then did what was necessary to make the headphones broadcast their presents and added them back and bingo everything worked! I am sorry if I have wasted your time but thank you for investigating.