Troubleshooting Sometimes, the unexpected happens. This could be the result of a technical problem, a limitation, or user error. Extend Your Cengage Unlimited SubscriptionAfter your Cengage Unlimited subscription ends, you can access your course free for 14 days, or purchase a 30-day extension. Links to CNOWv2 Courses or Activities Don't WorkWhen you click a link to a CNOWv2 course or activity from your LMS, the link doesn't open a new browser window with the course or learning activity. Multiple eBook LinksYour dashboard and Study Tools show multiple links for the same eBook.