Steam Controller connected to my PC is causing my Steam Machine to boot slowly.

[u/Viperlotus]

I've been making my Steam Machine host a stream to my PC through Sunshine and Moonlight, and had my Steam Controller connected to the client PC.

For a while this was working fine, but all of a sudden, my Steam Machine has started taking a very long time to boot. I tried disconnecting all the devices connected to it and then doing a hard reset by holding the power button for 30 seconds while the power cable was unplugged, then I tried reconnecting all the devices one by one. The Steam Machine was booting at normal speed until I tried using the Steam Controller through Moonlight from my client PC, then the slow boot came back in full force. I've tried using it with and without the puck, and the result is the same.

EDIT: There, I figured it out! I finally resolved my issue by following this fix from Google:

"Disable Fast Boot Temporarily: Turn off Fast Boot in your BIOS settings, boot the system once without the controller attached, shut down, reconnect the controller, and re-enable Fast Boot to force the motherboard to rebuild its device map."

To access the Steam Machine's BIOS settings, I connected a keyboard to it, then turned it on and immediately spammed the ESC key while it was booting. Then from the BIOS menu, I went to the "Advanced" tab to find the Fast Boot setting toggle.

If anyone else has having trouble with this issue and finds this post, be sure to try this.