This error message appears when you are logged into the wrong Ubisoft account while launching your game through Steam. To access your game: Select your account username in the top-right corner of Ubisoft Connect PC. ... Try launching your game again through Steam.
How do you fix there was a problem authenticating the ownership of this product?
Steps to fix product ownership authentication in Uplay
- Restart both clients. Close both Steam and Uplay apps. ...
- Re-log into Uplay. Click the account username in the top right corner of Uplay > select Log out. ...
- Change the Uplay password. Log out of the Uplay client. ...
- Open the game in Uplay. ...
- Contact Ubisoft Support.
How do I authenticate my Ubisoft account?
Head to the Account Management login page. Log in with your credentials. Once connected, you will be prompted to verify your account. Click Verify Now.
