The red/blue light has been an issue now for over a year I believe. I finally fixed it (Don't know how) but when I did a new install of Win 10 and thru Win 11 I am back with fighting with this blue light issue. No I am a technical person and have a degree in electronics and have built several computers for home use. I am convinced in my mind that this is a DEVELOPER ISSUE! Why Presonus does not want to get in front of this is beyond me! When any machine in the world boots up their PC from being off all night and the Presonus Quantum 2626 RED light stays on thru boot and after log in screen and no reason is given by developer, there is something fishy going on or somewhere in the developer chain they are either not aware of the issue or choose to ignore it and call it a "consumer work around" . Good luck with that in Judgement is all I have to say. You can take that to the bank!