I'm having a frustrating issue with the Bluetooth functionality on my ASUS TUF A15 (FA506NCR) laptop. The Bluetooth works for a while and then just stops functioning completely. I've already tried a bunch of troubleshooting steps: I did a fresh install of Windows 11, made sure I installed the latest Bluetooth drivers from the ASUS support page, disabled the power-saving settings for the Bluetooth adapter, turned off the fast startup feature in Windows, and fully updated both Windows and my drivers. Despite all of this, the Bluetooth option disappears from the device manager regularly. Any ideas on what else I can do?
2 Answers
First, try checking the Device Manager by going to View and selecting Show Hidden Devices. If you see Bluetooth listed as a ghost device, uninstall all the Bluetooth entries and restart your laptop. If it still disappears, check your BIOS settings; you want to make sure the onboard Bluetooth/Wireless setting is enabled. ASUS laptops can be tricky with firmware-related Bluetooth issues, so it might be worth looking for a BIOS update through MyASUS or the support site. Also, disabling Modern Standby via the registry could help—set PlatformAoAcOverride to 0. This is often the reason for sudden Bluetooth dropouts on Windows 11.
What Wi-Fi card are you using? Sometimes compatibility issues can cause problems with Bluetooth as well.
Here's a screenshot of my Wi-Fi card: 
I found a ghost device, uninstalled it, and disabled Modern Standby. However, I couldn't find any Bluetooth or Wi-Fi settings in the BIOS. Now when my laptop turns on, Bluetooth is missing completely.