Many viewers had their screens freeze or endlessly buffer, with some crashes reported as well. The 60 million who tuned in were an all-time high for the service. In a note to employees, Netflix Chief Technology Officer Elizabeth Stone admitted that there were problems.

Many third-party commentators are suspicious of Netflix’s ability to perform technically when it comes to streaming future high-profile sporting events.

Netflix subscribers across the country took to social media Friday evening complaining that the steaming service was buffering during the opening fight that was part of the highly touted Jake Paul-Mike Tyson card.