Original Post — Direct link
I just re-installed R6 after not playing for awhile, and whenever I try to start it, it would say "There was a problem authenticating the ownership of this product". Any way to fix it so I can play?
over 3 years ago - Ubi-Milky - Direct link
Hi SnowyIIVd, the message - "There was a problem authenticating the ownership of this product." means the game is connected to either the wrong Steam account or the wrong Ubisoft account.

In order to help you find the correct one you would need to get in touch with us through our support channels as we are unable to ask you personal identifiable information over the forums.

Twitter Support - https://twitter.com/UbisoftSupport
Facebook Support - https://www.facebook.com/UbisoftSupportUK/
Ubisoft Support Website - https://support.ubisoft.com/en-gb/Cases/New

If you reach out to us via our social media channels, please make it a private Direct Message with your Ubisoft ID or Ubisoft email address, also any platform account names you may have linked such as console, Steam or Epic as this can help locate your account.

We will try our best to get back to you within 48 hours and we will verify your account to prove ownership then proceed to help you with your account