probably they banned one of these : GPU HWID, CPU HWID or Ram HWID, i dont think that you can "bypass" it ( fortnite bans one of them so i think warrock is also gonna do since they also use EAC )
i know im late on this topic, but why not let people know.
they ban your Harddrive serial, unless you dont have an undetected spoofer you will need a new Harddrive, there is no usual way to change the serial like your mac-address.
