Can't turn on Bluetooth, Bluetooth adapter disappeared both in Device Manager and the Hidden Devices in Device Manager

Issue with the Realtek 2.5G LAN chip and this issue also effects other motherboards using this chip as well.

The following fix has been OK for me, but haven't tried it for long periods of sleep mode yet.

Go to Device Manager, Network adapters, Realtek Gaming 2.5GbE Family Controller. Right click on Properties, go to Advanced tab and change the following settings: Disable all the following settings:

• Advanced EEEE
• Energy-Efficient Ethernet
• Gigabit Lite
• Green Ethernet
• Power Saving Mode

My fix was to turn off USB Selective suspend. its been working for about a week with no more drops 🤞

Windows Additional power settings > Change Plan settings > Change advanced power settings > USB settings > USB Selective Suspend > DISABLED

https://www.reddit.com/r/sffpc/comments/hqbj0s/bluetooth_issues_on_gigabyte_b550i/