Original Post — Direct link
When i open game from steam it connects me to the ubisoft and says to me this error:"THERE WAS A PROBLEM AUTHENTICATING THE OWNERSHIP OF THIS PRODUCT".Idk what to do.Help me
over 3 years ago - Ubi-Keo - Direct link
Sorry for the late response.

This issue is caused by launching the game from Steam whilst logged into the wrong Ubisoft account.

Could you please check this support article for more information.

However if you still require assistance, could you please contact support on one of the following channels and they can assist you further:

Facebook
Twitter
Support Ticket
Live Chat