![]() In a stroke of dumb luck I decided to try 80 and it worked. The recommended value was 20 or 40 to correspond to the WiFi MHz band width, but the WiFi kept crashing with these values. Lo and behold there's a Windows registry value for the job. Asus Qualcomm Atheros QCA61x4A Bluetooth 4.1 Windows drivers can help you to fix Asus Qualcomm Atheros QCA61x4A Bluetooth 4.1 or Asus Qualcomm Atheros. At first I found that Bluetooth frequencies are hardware-controlled and can't be specified, but wait! There's Adaptive Frequency Hopping that can avoid certain noisy or in-use bands! Eventually I gave up and started looking at ways to tell the Bluetooth adapter to not use the WiFi frequencies. While waiting for my Intel card to arrive, I spent a week trying different driver combinations. The usual solution is to swap out the Qualcomm card with a compatible Intel card. This is a problem that's reported by thousands (thousands!) of people on the internet who use Atheros QCA61x4A / Liteon NFA344A / Killer 1535 wireless cards and other cards with Qualcomm WiFi/Bluetooth chips. I have exhausted my simple abilities and Google has left me with no other ideas on how to fix this issue.After updating to Windthe interference between the Qualcomm Atheros QCA61x4A WiFi adapter and its QCA61x4 USB Bluetooth adapter was making the WiFi crash non-stop whenever 2.4GHz WiFi and Bluetooth were both in use. I checked in Lenovo Advantage to see if there were any updates that needed installed (there are not) or if there was a recent update that could explain the sudden issue (there is not).I checked Windows Update to see if there was a recent update that may have caused the issue, but there has not been an update in a week, and the Bluetooth was working as of this morning (and all last week as well).In 'Device Manager' under 'Bluetooth' I attempted to update the driver by navigating to the new driver I had downloaded in step 6 above, then restarted.I went to the Lenovo driver website and found the most up to date version of the driver and downloaded it and ran it.Then I 'Scanned for Hardware changes', then completed step number 2 above, and restarted. In 'Device Manager' under 'Network Adapters' I uninstalled the existing driver and deleted the driver software. You should make sure wireless network adapter driver and Bluetooth driver is properly installed in your computer and is up-to-date to latest &. Qualcomm QCA61x4A/QCA9377 WiFi and Bluetooth Driver.Qualcomm Atheros QCA9377 bluetooth drivers - Treexy.Qualcomm Atheros Qca9377 Windows 10.Qualcomm qca61x4a bluetooth not working.Windows 10 - 64 bit driver for Atheros AR9285 card in.Qualcomm Atheros QCA9377 Bluetooth 4.1 Driver 10.0.0.126.Then I 'Scanned for Hardware changes', then completed step number 1 above, and restarted. In 'Device Manager' under 'Network Adapters' I uninstalled the existing driver and deleted the driver software.In 'Device Manager' under 'Network Adapters' I attempted to update the driver using 'Search automatically for drivers', then completed step number 1 above, and restarted. ![]() ![]() Then I 'Scanned for Hardware changes' and restarted. In 'Device Manager' under 'Bluetooth' I uninstalled the existing driver and deleted the driver software.In 'Device Manager' under 'Bluetooth' I first attempted to update the driver using 'Search automatically for drivers' and restarted.The Qualcomm Atheros QCA61x4 Wireless Network Adapter version is 12.0.0.722 dated Īfter much online searching I have attempted the following: The Qualcomm Atheros QCA61x4 Bluetooth Driver version is 10.0.0.725, dated. I am running MS Windows 10 Home version 1 and everything is fully up to date (as far as I can tell). When I look in 'Device Manager' under 'Bluetooth' Properties it says "Windows has stopped this device because When I navigate to 'Bluetooth and other devices' in Settings, it says that my Bluetooth is not turned on, and there is no longer a toggle to turn it on. Any software or support resources provided by Lenovo are made available AS. This product is no longer being actively supported by development (End of Development Support) and no further software updates will be provided. There is no longer a shortcut to the Bluetooth settings on the toolbar nor in the 'Notifications' area. Qualcomm Atheros QCA61x4 Bluetooth 4.1 for Windows 10 (64-bit) - Desktop - Lenovo Support IN. Today in the middle of listening to something on my Bluetooth headphones, the Bluetooth (Qualcomm Atheros QCA61x4) on my Ideapad Flex 5-1570 disabled. Qualcomm Atheros QCA61x4 Bluetooth suddenly stopped working- Error Message 43 This is a problem that's reported by thousands (thousands) of people on the internet who use Atheros QCA61x4A / Liteon NFA344A / Killer 1535 wireless cards and other cards with Qualcomm WiFi/Bluetooth chips.
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