Installation error, network error !!!

OK si it’s been 4 days without being able to play…
I bought the physical HW2 Ultimate Edition on 02/17, installed all 4 discs ( and ofc activated my licence key contained in the disc’s box )that same day to be able to play on early access, then i played without any issues at all until that 22/2 “patch”.Now everytime i launch the game ( WSRESET and all possible " fix" found on this forum ) i can’t get past the “press a key to continue” menu, all i get is a network error ( i’m logged to the same Windows Store account and Xbox app account on PC ).And if i try to uninstall and reinstall the game from discs, an error message pop up telling me that my licence key can’t be verified ( Miscrosft support told me that my key was a fraudulous one…) but it has been ACTIVATED and LINKED to my account already since i played the game for like 12hours si WTF IS GOING ON ???70€ GAME, and i can’t play at all, and no answers from devs.
Tired of trying to fix this because it’s obviously not on my end AT ALL.