Just had this issue today. For me the problem was that i didnt have enough space free on my c drive, but it still gives the "cant connect" error. You need ~5G free
"message": "Invalid OAuth 2.0 Access Token",
Be carfull oculus setup can't work if your C: partition is on DYNAMIC mode . i use EaseUS partition master (pro version) for change my partition mode ( Basic MBR ) .
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